Patent 7923626 was granted and assigned to Saint-Gobain on April, 2011 by the United States Patent and Trademark Office.
The invention relates to a glass substrate (1) provided with an electrode comprising at least one metal oxide-based transparent conducting layer (3), characterized in that said layer has an RMS roughness of at least 3 nm, especially of at least 5 nm and/or a mean feature size for this roughness of at least 50 nm.