A quick release projector screen includes a rectangular frame; two folding posts secured to a rear end of the frame using a plurality of first screws; and a screen attached to a front end of the frame using the first screws. There are further provided two first folding mechanisms disposed on each of top and bottom of the frame, two second folding mechanisms disposed on either side of the frame respectively, and two third folding mechanisms disposed on either post.

The information display apparatus includes a sheet display section; a mechanical mechanism that moves the display section, and switches a state of the display section between a deployment state in which a display space is formed and a non-deployment state in which the display space is not formed; a motion sensor that detects a motion of the display section; and a controller that calculates, from data of the detection performed by the motion sensor, at least motion information other than a component related to the movement of the display section that is performed by the mechanical mechanism, and determines an anomaly.

The present disclosure provides an improved collapsible portable, display device. The improved collapsible, portable display device, has a housing member having a sliding member aligned on the exterior of the housing member and sliding along the exterior of said housing member between two operating positions, a collapsible screen containing one or more sheets of flexible, wrinkle resistant silicone or rubber materials containing optical enhancing components and capable of displaying an image when in an expanded operating position, and multiple collapsible members connected to said screen and connected to said sliding member and said housing member, and the collapsible members move said screen between the collapsed and expanded operating positions as said sliding member moves between a first position and a second position.

The present disclosure provides an improved collapsible portable, display device. The improved collapsible, portable display device, has a housing member having a sliding member aligned on the exterior of the housing member and sliding along the exterior of said housing member between two operating positions, a collapsible screen containing one or more sheets of flexible, wrinkle resistant silicone or rubber materials containing optical enhancing components and capable of displaying an image when in an expanded operating position, and multiple collapsible members connected to said screen and connected to said sliding member and said housing member, and the collapsible members move said screen between the collapsed and expanded operating positions as said sliding member moves between a first position and a second position.

A projection screen apparatus is disclosed for displaying an image projected by a projector. The projection screen apparatus includes a frame and a screen. The frame includes a plurality of frame members and corner members.

A projection screen apparatus is disclosed for displaying an image projected by a projector. The projection screen apparatus includes a frame and a screen. The frame includes a plurality of frame members and corner members.

A dome screen projection apparatus has screen members made of synthetic resin and detachably joined together to form a dome screen having a curved configuration. Frame members are detachably connected together to form a frame, and suspension members suspend the dome screen in a suspended condition from the frame. The frame members include frame column members disposed on the outside of the dome screen, one at each side of the dome screen and one at the rear of the dome screen, a frame beam member supported at opposite ends at upper portions of the two frame column members at each side of the dome screen and extending above the top front portion of the dome screen, and a frame arc-shaped beam member supported at upper portions of the frame column members. A projector is supported by the frame and projects an image on an inner face of the dome screen while the dome is in the suspended condition. The dome screen may have a generally hemispherical shape with an open front that enables viewers located in front of the dome screen to view an image projected on the inner face of the dome screen. The dome screen projection apparatus can be easily assembled and disassembled on site and moved to another site for assembly and disassembly.

A dome screen projection apparatus has screen members made of synthetic resin and detachably joined together to form a dome screen having a curved configuration. Frame members are detachably connected together to form a frame, and suspension members suspend the dome screen in a suspended condition from the frame. The frame members include frame column members disposed on the outside of the dome screen, one at each side of the dome screen and one at the rear of the dome screen, a frame beam member supported at opposite ends at upper portions of the two frame column members at each side of the dome screen and extending above the top front portion of the dome screen, and a frame arc-shaped beam member supported at upper portions of the frame column members. A projector is supported by the frame and projects an image on an inner face of the dome screen while the dome is in the suspended condition. The dome screen may have a generally hemispherical shape with an open front that enables viewers located in front of the dome screen to view an image projected on the inner face of the dome screen. The dome screen projection apparatus can be easily assembled and disassembled on site and moved to another site for assembly and disassembly.

A system comprises a retractable panel structure, for example a screen/wall/divider/partition that can be rolled up and that can be unrolled. The panel structure comprises a back face (47) and a front face (48) that are spaced-apart from each other. The front face (48) is at least partly formed of an array of strips (23, 40) that are separate from each other and that move apart to allow the panel structure to be rolled up and wherein the back face (47) forms hinges that connect the strips (23, 40) together and that are capable of flexing to allow the said strips (23, 40) to move apart when the sheet is rolled up.

A projection screen apparatus and method of making the same. The apparatus has a perimeter frame and a projection screen where the perimeter frame includes an upper frame member, a lower frame member, a left frame member and a right frame member, where at least two of the frame members have a groove or track. The projection screen has fastening edges on at least two opposite sides for fastening the projection screen to the perimeter frame by inserting the fastening edge in the groove or track of a frame member. An auxiliary element is inserted in the groove or track next to a fastening edge, to prevent the fastening edge from exiting the groove.