The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 09, 2000
Filed:
Dec. 18, 1997
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; C09K / ; C09K / ;
U.S. Cl.
CPC ...
2522991 ; 25229901 ; 25229966 ; 25229962 ;
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.