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.

Date of Patent:
Jan. 08, 1980

Filed:

Dec. 15, 1977
Applicant:
Inventors:

Hiroshi Washida, Kawasaki, JP;

Hiroshi Morita, Machida, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
350357 ;
Abstract

An electrochromic display having enlarged surface area of the electrochromic material for rapid coloration and rapid bleaching yet fabricated so as to prevent corrosion of the electrode by the electrolyte. In a first embodiment, the display includes a conductive electrode formed on a substrate; a protective layer formed on the conductive electrode; a porous layer of an electrochromic material formed on the protective layer; a counter electrode formed apart from the porous layer; and an electrolyte disposed between the porous layer and the counter electrode. The protective layer is fabricated from a dense layer of an electrochromic material and the conductive electrode is fabricated from a metal non-reactive with the electrolyte. The porous layer is in direct contact with the conductive electrode. In a second embodiment, the electrode is made from a conductive material that is non-reactive with the electrolyte.


Find Patent Forward Citations

Washida, Hiroshi. (1980). Electrochromic display device (U.S. Patent No. 4182551). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4182551

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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