Video display device and multi-display system

A video display device comprising:

• a video display module in which display elements are arranged;
• a housing frame to which the video display module is to be fixed;
• an adjustment unit adjusting a location of the video display module in a front-back direction in a state of the video display module being temporarily fixed to the housing frame;
• a fixing unit fixing, to the housing frame, the video display module temporarily fixed to the housing frame, wherein
• the adjustment unit includes an adjustment screw including:
• a non-threaded portion on a side of the video display module;
• a threaded portion to be screwed into the housing frame;
• and
• a first magnet disposed at an end portion of the non-threaded portion on the side of the video display module and having a plurality of magnetic poles different in a rotational direction,
• the fixing unit is fixed to the video display module,
• the fixing unit includes:
• a cylindrical part having:
• a through hole into which the non-threaded portion of the adjustment screw is to be inserted;
• and
• a slit to be closed to reduce an inside diameter of the through hole so that the non-threaded portion is tightened by the through hole;
• and
• a fixing screw closing the slit to fix a location of the adjustment screw in the front-back direction, and
• the adjustment unit and the fixing unit are coaxially arranged.