Display stand

A display stand, configured to support a plurality of displays, the display stand comprising:

• an upright rod, extending along an axis;
• a first supporting arm, configured to support a first display;
• a second supporting arm, configured to support a second display;
• and
• a hinge joint member, comprising:
• a first knuckle, disposed on the upright rod and the first supporting arm, and having a first cylinder and a first pivoting seat, wherein the first cylinder is pivotally accommodated in the first pivoting seat, and the first supporting arm is pivotally rotatable with respect to a radial direction of the axis, and stops at any position between a first position and a second position;
• a second knuckle, disposed on the upright rod and the second supporting arm, and having a second cylinder and a second pivoting seat, wherein the second cylinder is pivotally accommodated in the second pivoting seat, and the second supporting arm is pivotally rotatable with respect to the radial direction of the axis, and stops at any position between a first position and a second position;
• a first stopping surface;
• and
• a second stopping surface;
• wherein, when the first supporting arm is at the first position, the first pivoting seat abuts against the first stopping surface, when the first supporting arm is at the second position, the first pivoting seat abuts against the second stopping surface, when the second supporting arm is at the first position, the second pivoting seat abuts against the first stopping surface, when the second supporting arm is at the second position, the second pivoting seat abuts against the second stopping surface,
• wherein the first pivoting seat and the second pivoting seat respectively have a hollow tube and an opening slot formed at the hollow tube, the hollow tube and the opening slot of the first pivoting seat extend along the axis, the first cylinder is accommodated in the hollow tube of the first pivoting seat and is reciprocally slidable along the axis, the hollow tube and the opening slot of the second pivoting seat extend along the axis, and the second cylinder is accommodated in the hollow tube of the second pivoting seat and is reciprocally slidable along the axis,
• wherein the hinge joint member further has two hollow bushings, wherein one of the hollow bushings is clamped between the first cylinder and the first pivoting seat, wherein the other hollow bushing is clamped between the second cylinder and the second pivoting seat, and wherein each of the hollow bushings respectively has a perforated groove extending along the axis.