Multi-zone ec windows

A method of forming a monolithic EC device comprising two tinting zones, the method comprising:

• a) forming the monolithic EC device;
• b) applying a single bus bar to the top TCO of the monolithic EC device;
• c) cutting through the single bus bar along its width;
• and,
• d) cutting at least part way through the top TCO, but not through the electrode layer adjacent to the top TCO, to form a resistive zone between the two tinting zones;
• wherein c) forms separate bus bars for each of the two tinting zones from the single bus bar.

An electrochromic window lite comprising:

• an EC device on a transparent substrate, the EC device comprising bus bars;
• a region of the transparent substrate that is not covered by the EC device, said region capable of providing, when not mitigated, a bright spot or bright region when the EC device is tinted;
• and
• an obscuring material over the region, wherein the material has a lower transmittance than the substrate.

A method of obscuring a potentially bright area produced by a region of a transparent substrate that is not covered by an EC device, the method comprising:

• i. providing an electrochromic lite having the EC device on a substrate;
• ii. identifying a site of the potentially bright area on the substrate;
• and
• iii. applying an obscuring material to the site;
• wherein the obscuring material has a lower transmittance than the substrate.