Gravity lock bookstand and binder

I claim a collapsible display stand from an elongated flat structure comprising five panels of relatively stiff sheet like material sequentially hinged in manufacture, said elongated structure being foldable into a compact display stand with the first panel sandwiched in substantial planar tangency within the second and fifth panels, the second and third panels serving as the top cover, the fourth panel acting as the spine or backbone and the fifth panel becoming the rear or bottom cover of the closed display stand, from which collapsed state it can be readily erected by lifting the second panel pivoted on its commmon hinge with the third panel, allowing the first panel which becomes a support panel to rest perpendicularly on the fifth panel which becomes the display stand's base panel, the second panel leaning rearwardly becomes a back-rest panel for the display material, said second panel forming a tilted approximate right angle with the attached downwardly sloping third panel which becomes an inclined shelf panel, supported in elevation through its common hinge by the upright fourth panel or backbone panel serving now as the display stand's front support panel, means for maintaining rigidly this approximate quadrature relationship between second and third panels, thus forming a secure well on which the bottom of the display material can rest preventing forward and upward slippage, as the vertical component of the displayed material's weight pulls said first panel in secure gravity lock when placed on a flat level surface, this gravity lock force disappearing with the removal of the load, allowing easy collapse and folding of the display stand.