Self-erecting display device

A collapsible self-erecting display device formed of paperboard or the like comprising a pair of polygonal endwalls and quadrilateral sidewalls corresponding in number to the number of side edges of said endwalls, means for hingedly connecting each of said sidewalls at its inner end along a second foldline to the outer end of a corresponding sidewall on the other endwall, said sidewalls having side edges that diverge outwardly from the inner ends to the outer ends thereof and diverge relative to the adjacent side edge of the adjacent sidewall when in the collapsed condition in which the sidewalls on each of the endwalls are folded about said first foldlines into the plane of the endwall and are folded about said second foldlines whereby said one endwall and the connected sidewalls are flat against the other endwall and the corresponding sidewalls, elastic means connected at its ends to two interconnected pairs of said sidewalls adjacent to said second foldlines on opposite sides of said endwall for biasing the outer ends of said sidewalls inwardly into an erected condition in which the side edges of said sidewalls abut, and a planar display panel and means positioning said panel on one of said endwalls with a portion thereof between the adjacent side edges of two adjacent sidewalls whereby said panel will lie flat on said display device in the collapsed condition and will automatically stand upright on said endwall as the portion thereof between said side edges is pinched between the same in response to the display being self-erected.