Abstract: A connector for detachably connecting profiles includes a housing; a first and a second clamping component, each comprising at their ends a clamping hook; an activation mechanism adapted to shift the first and second clamping components concerning the housing; a first and a second pair of guide components adapted to define a trajectory of the first and second clamping components, respectively, during the shift, so that at least during a part of the trajectory the distance in the transverse direction Y between the clamping hooks is varied, and at least during a part of the trajectory the distance in longitudinal direction X between the housing and the clamping hooks is varied.

Abstract: The invention relates to a display module for a temporary exhibition stand. The display module comprises LED screens, a display frame and a signal receiver; wherein the display frame comprises a front face, a first, second, third and fourth lateral face and fixing surfaces are arranged on the display frame, a first set installation holes is formed in the lateral faces and a second set installation holes is formed in the fixing surfaces, wherein panels of LED screens are arranged on the front face of the display frame, and the LED screens are connected with the signal receiver. Modular connections and quick assembling and disassembling of the display frame are completed by connectors. These connectors are similar as the connectors used for connecting frame modules. The LED screens enable to display moving and dynamic images on the surface of the wall of the temporary exhibition stand.

Abstract: The invention relates to a display module for a temporary exhibition stand. The display module comprises LED screens, a display frame and a signal receiver; wherein the display frame comprises a front face, a first, second, third and fourth lateral face and fixing surfaces are arranged on the display frame, a first set installation holes is formed in the lateral faces and a second set installation holes is formed in the fixing surfaces, wherein panels of LED screens are arranged on the front face of the display frame, and the LED screens are connected with the signal receiver. Modular connections and quick assembling and disassembling of the display frame are completed by connectors. These connectors are similar as the connectors used for connecting frame modules. The LED screens enable to display moving and dynamic images on the surface of the wall of the temporary exhibition stand.