Material for light modulation and manufacturing processes
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United States of America Patent
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Oct 15, 1991
Issued Date -
N/A
app pub date -
Jan 10, 1990
filing date -
Jul 24, 1987
priority date (Note) -
Expired
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Abstract
An electrolytic material intended for a process relating to a light-modulating cell involving electrochromic reflection or transmission. The electrolytic material is a homogeneous mixture of solid consistency, comprising at least (a) a water-soluble salt or salts of one metal which can be cathodically deposited from an aqueous solution of one of its ions; (b) one initially water-soluble film-forming polymer resin; and (c) water. The material has ionic conductivity and deformability, and can be formed in a thin continuous layer. It has at least the functions of participating in the erasure of a picture element earlier written in the light-modulating cell, and of enabling the flow of electrical current between a working electrode and a counter-electrode during writing and erasure steps.
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