Display system, display device and display connection module thereof

A display system, comprising:

• at least one bracket;
• a plurality of display devices, hung on the at least one bracket, wherein each display device comprises:
• a device housing;
• a knob, rotatably connected to the device housing, wherein the knob comprises a latch and a plurality of teeth, the knob is adapted to be rotated between a first knob location and a second knob location around an axis, and when the knob is in the first knob location, the latch protrudes from the device housing, and when the knob is in the second knob location, the latch is located in the device housing;
• a restriction unit, disposed in the device housing, wherein the restriction unit is adapted to be connected to one of the plurality of teeth to restrict the knob;
• and
• a screen panel, detachably connected to the device housing, wherein the axis is perpendicular to the screen panel,
• wherein the knob is adapted to connect the adjacent two display devices,
• wherein the restriction unit comprises a restriction block and a spring, one end of the spring abuts the device housing, the other end of the spring abuts the restriction block, the restriction block is adapted to be moved between a first block position and a second block position along a straight line parallel to the screen panel.

A display connection module, comprising:

• a device housing;
• a knob, rotatably connected to the device housing, wherein the knob comprises a latch and a plurality of teeth, the knob is adapted to be rotated between a first knob location and a second knob location, and when the knob is in the first knob location, the latch protrudes from the device housing, and when the knob is in the second knob location, the latch is located in the device housing;
• a restriction unit, disposed in the device housing, wherein the restriction unit is adapted to be connected to one of the plurality of teeth to restrict the knob;
• and
• a first connector, wherein the first connector is slidably connected to the device housing, the first connector is adapted to be moved between a first connector position and a second connector position, and when the first connector is in the first connector position, the first connector protrudes from the device housing, and when the first connector is in the second connector position, the first connector is located in the device housing.