Tiled electrochromic devices on carrier glass and methods of making the same

A tiled electrochromic (EC) device, comprising:

• a carrier glass;
• a first EC device laminated to the carrier glass comprising a first active area, a first clear state and a first dark state;
• a second EC device laminated to the carrier glass comprising a second active area, a second clear state and a second dark state;
• a third active area comprising the first active area and second active areas;
• and
• a seam between the first and second EC devices;
• wherein:
• the carrier glass has an area greater than 2 m2;
• the first and second clear states comprise a CIE-Lab L* in transmission from 70 to 95, b* in transmission from −8 to 8, and a* in transmission from −4 to 4;
• the third active area comprises a third clear state, a third dark state, and a plurality of tint states between the third clear state and the third dark state, wherein the plurality of tint states are along a continuum of tints comprising a Tvis from 0.1% to 80%;
• and
• a deltaE between any two points within the third active area of the tiled EC device in transmission is less than 10 in the third clear state, the third dark state, and at all tint states in the plurality of tint states, across the large area tiled EC device in all lateral dimensions.