| 主权项 |
1. A display system comprising:
a portable housing adapted to be carried by a person between geographically separated locations, said housing including a lower base surface for supporting the housing on a ground surface and an upper surface having an aperture positioned at a rear side of the housing and a display opening positioned at a front side of the housing, the display opening being a slot extending across the front side of the housing, with the lower base surface being generally rectangular and with no other ground-engaging lateral supports, and said housing including an interior storage compartment; an electroluminescent display panel comprising an electroluminescent ink layer, a dielectric ink layer and a backplate layer, said display panel being flexible and capable of being provided in a first extended orientation wherein the display panel is visible to a bystander and a second refracted orientation wherein the display panel is returned into the housing; a power supply within the housing and adapted to power the display panel; a pair of conductive leads within the housing and coupled between the power supply and the display panel; a cylindrical tube about which the display panel is wound during storage; at least one conductive slip ring assembly positioned at an end of the cylindrical tube; at least one busbar defined upon a surface of the display panel and being coupled to one of the pair of conductive leads via said at least one conductive slip ring assembly; an elongated frame for supporting the display panel in the first extended orientation relative to the housing, said frame including a first end which is inserted into the aperture in the upper surface of the housing and a second end that engages a upper bracket that supports a pulling bar and an end of the display panel, with frame extending vertically from the housing and the upper bracket extending horizontally from the second end of the frame and with a cooling fan being positioned between the frame and the display panel in the first extended orientation, wherein the base surface of the housing supports the frame and display panel in the first extended orientation without the frame being in contact with the ground surface, and wherein the frame includes a plurality of posts, and wherein the upper bracket, pulling bar and plurality of posts are carried within the interior storage compartment of the housing when not in use to support the display panel; and a return mechanism within the housing for retracting the display panel from the first extended orientation into the second retracted orientation. |
