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US 9,341,912 B2Granted
Multi-zone EC windows
AssigneeView, Inc.
InventorsDhairya Shrivastava, Robin Friedman, Vinod Khosla, Rao Mulpuri
Life of this patent
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Abstract
Thin-film devices, for example, multi-zone electrochromic windows, and methods of manufacturing are described. In certain cases, a multi-zone electrochromic window comprises a monolithic EC device on a transparent substrate and two or more tinting zones, wherein the tinting zones are configured for independent operation.
Claims25
An electrochromic window lite comprising:
- (i) a monolithic EC device on a transparent substrate, the monolithic EC device comprising first and second transparent conducting layers and an electrochromic stack between the first and second conducting layers;
- and
- (ii) a resistive zone between each of two or more tinting zones in the monolithic EC device, each of said two or more tinting zones configured for operation independent of the others;
- wherein the resistive zone has higher electrical resistivity than the remaining portions of the monolithic EC device and is configured to tint.
1 more element
A method of forming a monolithic EC device comprising two tinting zones, the method comprising:
- a) forming the monolithic EC device comprising first and second transparent conductive oxide (TCO) layers and an electrochromic stack between the first and second TCO layers;
- b) applying a single bus bar to the second TCO of the monolithic EC device;
- c) cutting through the single bus bar along its width;
- and
- d) forming a resistive zone between the two tinting zones in the monolithic EC device, wherein the resistive zone formed has higher electrical resistivity than the remaining portions of the monolithic EC device and is configured to tint;
- wherein c) forms separate bus bars for each of the two tinting zones from the single bus bar.
3 more elements
Dependencies are inferred from the claim text.