A portable display device has a rectangular center panel having a top edge, a bottom edge, two side hinges and a back, with first and second rectangular side panels respectively hingedly connected to the center panel by the two side hinges thereof. A support foot has a base hingedly connected to the bottom edge of the center panel and foldable to lie adjacent the back of the center panel, and first and second legs hingedly connected to the base and deployable extending rearwardly from the base and configured for releasable interconnection spaced from the base, thereby to maintain the support foot in a configuration extending rearwardly from the center panel and supporting the center and side panels in an upright position. The first and second side panels are foldable onto the display surface side of the center panel, and the base and legs of the support foot are foldable to lie adjacent the back of the center panel, wherein the portable display device has substantially the width and length of the center panel for transportation and storage.