Patent ID: 8169698
Filing Date: 2012-05-01
Classification: G03B

Abstract:
1. An integral projection screen structure for displaying an image from a projection source, comprising: (a) a frame having generally parallel top and bottom portions and generally parallel first and second opposing side portions, each side portion forming a channel; (b) first and second movable projection screens having surfaces with different optical properties disposed within said frame, each movable projection screen comprising an operable roller for rolling and unrolling the screen and being mounted at the top portion of said frame, and a flexible sheet of material having a projection surface for displaying an image projected thereon, said sheet of material having a front side and a back side, a top portion connected to the roller and being movable between a rolled condition and an unrolled condition, a bottom portion opposite the top portion, and first and second opposing side portions for disposition within the channels formed by the side portions of the frame when the sheet is in the unrolled condition, the second screen being nearest the viewer when in the unrolled condition; and (c) a masking system having at least two movable masking panels disposed within said frame over at least two of the top portion, bottom portion and first and second side portions of the front side of the sheet in the second screen.