Electrochromic formulation and organic electrochromic switchable electronic component

US8300296B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Andreas Kanitz · Edenkoben, DE
• Wolfgang Roth · Zweibrücken, DE

Key dates

• Filing date: Nov 18, 2010
• Grant date: Oct 30, 2012
• Expiry date: Apr 23, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K9/02
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

An electrochemical formulation has an active dye. An organic electrochromic switchable electronic component of high switching speed is made using the dye. The component is used to make electrochromic displays. The dye has substituents limiting or preventing a π-merisation of the aromatic moieties.