Patent ID: 7710646

Claim:
A projection screen structure for home cinema theater applications in displaying an image from a projection source, comprising: (a) a sheet of flexible projection screen material for attachment to a generally fixed mounting structure in a mounted condition, said sheet of material having a projection surface for displaying an image projected thereon, said sheet of flexible projection screen material having in an unmounted condition top and bottom edges and first and second side edges, at least one of said top and bottom edges having a curved shape defining a distance at the vertical center of said sheet between said top and bottom edges of said sheet that is smaller than the length of said side edges; (b) a generally fixed mounting structure defined by generally parallel inwardly curved top and bottom portions and generally parallel side portions for supporting said sheet of material in said mounted condition as a curved projection screen defining an inwardly curved projection surface up to about 12 feet in width; (c) means for tensioning said sheet of material onto said mounting structure whereby outward bulging of said material in the mounted condition on said mounting structure is substantially eliminated; and (d) first and second movable masking panels disposed at respective first and second sides of said projection screen.