Abstract: A modular panel system suitable for erecting a freestanding portable exhibit display, or room partition, utilizes a plurality of lightweight structural panels interconnected across the entire horizontal length of the display, or partition, by a plurality of elastic connecting members. Vertically abutting structural panels are interconnected by a plurality of rigid connecting members. The structural panels accommodate the elastic and rigid connecting members through insertion into a first set of horizontally extending parallel channels internal to each panel, and a second set of vertically extending parallel channels internal to each panel. The overall weight of the present modular panel system is significantly reduced, while achieving a hinged relationship between horizontally abutting panels.