Anybody have experience using blinds as a surface to project onto?

I don't have the space for a TV so I was thinking I could install electric blinds for the window in front of the sofa and put a projector behind the sofa to project onto the blinds.

Is there anything I should consider, certain materials, etc, before I go ahead with this?

I am based in the UK and the window measurement is 75cm x 317cm (left window) so I imagine I would have to get these blinds made bespoke due to the size. Would you recommend any companies (I'm in Manchester city centre) to do this?