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US 12,560,846 B2Granted
Adhesive bus bars in electrochromic windows
AssigneeView Operating Corporation
InventorsRobin Friedman, Anshu A. Pradhan, Imran Khan, Illayathambi Kunadian, Robert T. Rozbicki, Zoran Topalovic, Robert Michael Martinson
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Abstract
Embodiments described include adhesive bus bars for electrochromic or other optical state changing devices. The bus bars are configured to color match and/or provide minimal optical contrast with their surrounding environment in the optical device, provide better adhesion than ink based bus bars, as well as obviate the need to mitigate defects in underlaying layers.
Claims46
An electrochromic insulated glass unit comprising:
- a first transparent substrate;
- a second transparent substrate;
- a spacer sandwiched between the first and second transparent substrates;
- an electrochromic device coating disposed on the first transparent substrate, the electrochromic device coating comprising a first transparent conductive layer, a second transparent conductive layer and an electrochromic device stack disposed between the first and second transparent conductive layers, wherein the electrochromic device stack is disposed on the first transparent conductive layer, and wherein the second transparent conductive layer is disposed on the electrochromic device stack, and wherein the second transparent conductive layer is separated from the second transparent substrate by a space;
- and
- a first adhesive bus bar on the first transparent conductive layer,
- wherein the first adhesive bus bar comprises a first leg comprising (1) a first portion, between the first transparent substrate and the spacer, and (2) a second portion emanating from between the first transparent substrate and the spacer and extending to a secondary seal area.
4 more elements
Dependencies are inferred from the claim text.