A display stand has two spaced apart legs connected by a horizontal support bar that is attachable to multiple displays. Carriage assemblies allow the stand to adjust the vertical position of the displays, shuttles and rails allow the stand to adjust the horizontal positions of the displays, and a central joint on the support bar allows the stand to adjust the angle between the displays. The carriage assemblies can convert rotational movement of adjustment handles into vertical movement of the support bar that is synchronized at both legs whether the support bar is in a straight or angled configuration. Wheels on the shuttles can provide smooth, consistent contact with rails in the support bar despite changes in the nominal dimensions of the rails. The display stand provides improved smoothness, rigidity, and comfort for the user to support and use multiple displays on a single stand.