Do you watch 9 by Design on Bravo? It's on Tuesday night and it's about a couple in New York with 6 or 7 kids and their design business. They are self-taught designers making a living by fixing houses for other people and flipping houses themselves.
Anyway, if you watch the show you'll see that the show's opening has a geometric wallpaper background that is also used in their living room (in purple!).
If you like that pattern, you can find it at Cole & Sons Wallpaper. It's called Hick's Hexagon and comes a few colorways.
To read more about Sixx Design, click here.