150 Projector Screen What Lens Is Best For A Projector Project?

What lens is best for a projector project? - 150 projector screen

I looked at a DIY projector. I have an old laptop with a 15.4. "The thing is that I need to know what the goal is certainly the work of a screen of 150 inches diagonal, not less than 80". So if someone comes to this its own projector, if you please give me some advice on where and what equipment I need.
Thanks
Morges