Patent ID: 7864418

Claim:
A screen comprising: a flexible screen main body, having a projection surface, onto which an image light is projected; a first support and a second support, each of which extend along one of a pair of opposed edges of the screen main body, each supporting one of the pair of opposed edges; an auxiliary support which, being disposed between the first support and the second support, extends parallel to the first support and the second support, and supports a pair of intersecting edges intersecting with the pair of opposed edges of the screen main body; linkage mechanisms which, bridging adjacent supports among the first support, the second support, and the auxiliary support, as well as regulating a movement of the adjacent supports in an out-of-plane direction of the projection surface of the screen main body, extend and contract in a direction in which the adjacent supports face each other, bringing the adjacent supports closer to and away from each other; and a plurality of adjustment mechanisms connected to the second support and extending from the second support in a direction away from the first support, the adjustment mechanisms facilitating an adjustment in a distance between the first support and the second support and a change in a tension applied to the screen main body.