Patent ID: 6981350

Claim:
A collapsible display apparatus for use with a projector configured to project an image to be watched by a viewer, the collapsible display apparatus comprising a support frame moveable between a collapsed position and an expanded position, the support frame including a plurality of frame member pairs and a plurality of hubs, each frame member pair including first and second frame members pivotably coupled together to define an X-shape, each first and second frame member being pivotably coupled to the plurality of hubs to permit movement of the support frame between the collapsed and expanded positions, a substantially blank, white projection screen supported by the support frame and made of a polyester fabric, a back sheet positioned between the projection screen and the support frame to protect the projection screen from damage during movement of the support frame to the collapsed position, and at least one lock positioned to block movement of the support frame between the expanded and collapsed positions, the lock including a first telescope member, a second telescope member positioned in the first telescope member, and a lock member configured to selectively block relative movement between the first and second telescope members, the second telescope member being positioned in the first telescope member when the support frame is in the collapsed position.