Electro chromic assembly based on poly (3,4-ethylenedioxythiophene derivatives in the electrochromic layer and the ion-storage layer

US6452711B1 · kind B1 · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Helmut-Werner Heuer · Krefeld, DE
• Rolf Wehrmann · Krefeld, DE

Key dates

• Filing date: May 27, 1999
• Grant date: Sep 17, 2002
• Expiry date: May 27, 2019

Classification

• Technology area (CPC G): Physics
• CPC primary: G02F2001/164
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Electrochromic assemblies having a layer structure, characterized in that two layers each contain an electrically conductive, electrochromic polydioxythiophene selected from the same group of substances.