Composite pane having electrically controllable optical properties

US11312111B2 · kind B2 · utility

Assignee

• SAINT-GOBAIN GLASS FRANCE · FR

Inventors

• Marcel KLEIN · Baesweiler, DE
• Georg Schmidt · Lindflur, DE
• Li-Ya Yeh · Geilenkirchen, DE
• Michael Labrot · Aachen, DE
• Alicia DRÖGE · Herzogenrath, DE

Key dates

• Filing date: Sep 10, 2018
• Grant date: Apr 26, 2022
• Expiry date: Jan 31, 2039

Classification

• Technology area (CPC G): Physics
• CPC primary: G02F2202/28
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A composite pane having electrically controllable optical properties, includes an outer pane and an inner pane that are joined to one another via a thermoplastic intermediate layer, wherein a functional element having electrically controllable optical properties is embedded in the intermediate layer, the functional element including an active layer between a first carrier film and a second carrier film, wherein the intermediate layer contains a first thermoplastic material and the carrier films contain a second thermoplastic material, and wherein the first carrier film and the second carrier film are fused together along at least one region of the side edge of the functional element.