Method of making an electrochromic layer and new electrochromic

Details Method of making an electrochromic layer and new electrochromic Method of making an electrochromic layer and new electrochromic

1987-12-24

1989-06-06

Laroche, Eugene R.

G02F 101, G02F 117

Patent

active

048375926

ABSTRACT:
This invention teaches an electrochromic device in which an electrochromic layer is positioned between two electrodes. The electrochromic layer comprises an inorganic based bulk material supporting electrochromic particles and ion producing particles in fixed but generally distributed positions therewithin. The bulk material permits migration of ions produced by the ion producing particles to and from the electrochromic particles upon change in voltage between the first and second electrodes. The bulk material also prohibits the passage of electrons therethrough when a voltage is applied between the first electrode and the second electrode, whereby an electric field is built up between the first and second electrodes which causes migration of the ions. A preferred method of making a material which can form an electrochromic layer is also disclosed.

REFERENCES:
patent: 4326777 (1982-04-01), Kohara
patent: 4375318 (1983-03-01), Giglia et al.
patent: 4693564 (1987-09-01), Mori
patent: 4712879 (1987-12-01), Lynam et al.
patent: 4715691 (1987-12-01), Sata et al.

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