Base element e.g. French window, for video image display device used on e.g. outer front wall of building, has LEDs to emit light via front pane, where zone of rear surface of pane located against LEDs is free from photovoltaic element

摘要

The base element (8) has front and rear panes (10, 12) e.g. organic glass panels, arranged opposite to one another. A photovoltaic element (38) is placed on a rear surface (32) of the front pane. An electronic circuit includes LEDs (18) to emit light through the front pane. A zone of the rear surface of the front pane located against the LEDs is free from the photovoltaic element. The photovoltaic element is a photovoltaic material, photovoltaic cells, or an amorphous silicon photovoltaic layer. Collectors recover electricity produced by the photovoltaic element.