Electrical heating for glass panel surface e.g. heated automobile windscreen, has electrically-conductive surface coating and relatively insulated electrically-conductive partial surface connected to earth

摘要

The electrical heating is provided by an electrically-conductive surface coating (3) applied to the glass panel, supplied with an electrical voltage via associated terminal electrodes (9,10) and an electrically-conductive partial surface (5T) connected to earth, which is electrically insulated from the electrically-conductive surface coating.