Bracket structure, sub-display panel assembly, and a tiled display device

A bracket structure, wherein the bracket structure comprises a body and at least one transfer motion adjustor, wherein the body has a support surface, an assembly surface, and at least one side surface, the support surface is disposed opposite to the assembly surface, the side surface is disposed between the support surface and the assembly surface, the at least one side surface comprises a first side surface, and the transfer motion adjustor is located inside the body;

• the transfer motion adjustor comprises:
• a first rotation member and a first guide member connected to the first rotation member, wherein the first rotation member is close to the first side surface, and a first hole is provided on the first side surface at a position corresponding to the first rotation member, to expose an end of the first rotation member close to the first side surface, so that a first external jig adjusts the first rotation member to rotate through the end of the first rotation member close to the first side surface and exposed from the first hole;
• and
• a second hole is provided on the assembly surface at a position corresponding to the first guide member, and the first guide member is configured to move along the second hole in response to the rotational control of the first rotation member to adjust a protruding amount of the first guide member on the assembly surface,
• wherein the first rotation member comprises:
• a first adjusting element and a first connecting element connected to the first adjusting element, and the first guide member comprises a first worm and a first worm wheel nested on the first worm;
• the first connecting element is provided with first threads, the first worm wheel is provided with engaging insections matched with the first threads, the first worm wheel is configured to rotate in response to rotation of the first connecting element, and a rotation axis of the first worm wheel is perpendicular to a rotation axis of the first connecting element;
• and
• the first worm is provided with second threads, the second hole is provided with internal threads matched with the second threads, and the first worm is configured to rotate coaxially with the first worm wheel to move along the second hole.