SWITCHABLE OPACITY DEVICE

摘要

A switchable device for changing the opacity of at least a portion of a glazing is described. The switchable device comprises at least first and second switchable regions in electrical communication with at least first and second electrical connector regions (37, 47). Each switchable region comprises an electrically actuated variable opacity layer (31, 41) between a first electrode (33) and a second electrode (35), the first switchable region being arranged relative to the second switchable region such that upon connecting the first and second electrical connector regions to a suitable power supply (49), the opacity of the first and second switchable region changes such that at least first and second portions of the switchable device have a change of opacity, the first portion of the switchable device having a different opacity to the second portion of the switchable device.