FASTENER FOR PREVENTING GAP AND ANGLE CONTROL FUNCTION AND MULTI DISPLAY WITH THE SAME

摘要

PURPOSE: A bidirectional coupling device and a multi display including the same are provided to reduce a core area by minimizing a gap between adjacent display panels. CONSTITUTION: A bidirectional coupling device(32) is comprised of a head(34) and a coupling unit(36,38). Screw threads(40,42) are formed in both piece coupling units and have opposite coupling and tightening directions.