I cannot seem to see the image for some reason. But I can imagine what you are describing. There is no particular name for a tartan woven with a large sett size. You'd still just call it "Royal Stewart," though woven with say a 14" sett repeat as opposed to a 7.5" repeat.

Occasionally a woolen mill will offer two versions of the same tartan in different sett sizes, and offer them under different names, but this is generally just "in house" terminology.

For example, I recently received a length of "Old Campbell" tartan from Lochcarron for a kilt I'm making. It is exactly the same as their ordinary Campbell tartan, only woven with a slightly smaller sett. Outside of this range of cloth from Lochcarron, if you referred to the "Old Campbell" tartan I wouldn't know what you were talking about.

In the nineteenth century it was more common for mills to offer the same tartan in multiple sett sizes. For example, if you look at this pattern book, you will note that they offer a 42nd tartan, and a "Small 42nd" tartan. Likewise they offer a Davidson and a "Small Davidson." The same is true with Glengarry and MacKenzie. They even offer three different sizes of the Rob Roy!