it is a vision experience screen. THey have an ebay storehttp://cgi.ebay.com/Inflatable-10-foot-Outdoor-Projection-Movie-Screen-4-3_W0QQitemZ140016324270QQihZ004QQcategoryZ48655QQtcZphotoQQcmdZViewItem
I bought it last year around $2000. I use it for my screen rental business. I enjoy using this screen more than my large screen (15x20). Maybe because it is less work.
It is 4:3. The screen is spandex and looks great from the front or rear projected. I am not sure if it is the material you guys call Dazian. I know it is not Trapeze because I had a company send me a sample and trapeze was a bit off white with no shine. This fabric is a bit shiny on the front and "matte' on the other side.