Switchable optical device and switchable glazing unit

Abstract

A switchable optical device including in this order a first substrate, a first conductive layer, a switchable layer, a second conductive layer and a second substrate, which device further contains one or both of the following: i) the first conductive layer contains a first contact zone and a second contact zone, wherein the first contact zone is electrically insulated from the second contact zone and the switchable optical device contains an electrical interconnect for electrically connecting the second contact zone of the first conductive layer the second conductive layer, ii) the switchable optical device contains at least one further sheet which is laminated to the first substrate and/or the second substrate, wherein first substrate, second substrate and the at least one further sheet have essentially the same thermal expansion coefficient. A switchable glazing unit containing at least one glass pane and at least one switchable optical device.

Dependencies are inferred from the claim text.