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. 08, 1990
Filed:
Oct. 05, 1988
Hulya Demiryont, Dearborn, MI (US);
Ford Motor Company, Dearborn, MI (US);
Abstract
This invention is directed to electrochromic devices having a color intensity gradient. Specifically the electrochromic device comprises two substrates and therebetween: one electrode layer; an electrochromic layer; an ion conductive material; and another electrode layer in that order. At least one of the electrode layers is transparent and each electrode layer is in contact with a respective one of the substrates. The ion conductive layer is adapted to communicate ions to and from the electrochromic material upon the application of a voltage across the electrode layers. The electrochromic material has a continuously decreasing thickness gradient in at least one region when measured normal to the plane of an electrode layer.