Display device and display system having the same

1. A display device comprising:

a display module including a display panel facing forward in a first direction, and

a supporter magnetically coupled with the display module and supporting the display module,

wherein the display module further includes

a rotating magnet that is rotatable about a rotation axis extending in a second direction perpendicular to the first direction, and is engageable with an external magnet via magnetic force to cause the rotating magnet to rotate about the rotation axis, and

an adjustment member that translates in the first direction or a third direction opposite to the first direction due to the rotation of the rotating magnet caused by the engagement with the external magnet, to adjust a distance between the display module and the supporter and thereby adjust a level of the display panel in the first direction.

2. The display device of claim 1 ,

wherein the display module further includes a coupling magnet to magnetically couple the supporter to the display module, and the coupling magnet provides sufficient magnetic coupling so that the supporter and the display module remain magnetically coupled while the adjustment member translates.

3. The display device of claim 2 , wherein, when the adjustment member translates in the third direction, the adjustment member pushes the supporter in the third direction to thereby increase the distance between the display module and the supporter.

4. The display device of claim 1 , wherein

the display module includes a worm gear transmitting rotational force of the rotating magnet to the adjustment member,

the worm gear includes a worm rotated along with the rotating magnet around the rotation axis extending in the second direction, and a worm wheel interlocked with the worm and rotated around a rotation axis extending in the first direction, and

the adjustment member is rotationally coupled with the worm wheel around the rotation axis extending in the first direction.

5. The display device of claim 4 , wherein

the worm wheel is engaged and rotated with the worm when the rotating magnet is rotated, and

the adjustment member translates in the first direction or the third direction while being engaged with the rotation of the worm.

6. The display device of claim 5 , wherein

the adjustment member translates in the first direction when the rotating magnet rotates in one direction, and

the adjustment member translates in the third direction when the rotating magnet rotates in a direction opposite to the one direction.

7. The display device of claim 5 , wherein

the worm wheel includes a center portion on the rotation axis of the worm wheel, and teeth extending from the center portion and formed along a circumferential direction of the worm wheel, and

the adjustment member is rotationally inserted into the center portion.

8. The display device of claim 7 , wherein

the center portion includes an insertion hole into which the adjustment member is inserted, and first threads formed on an inner circumferential surface of the insertion hole, and

the adjustment member includes a body inserted into the insertion hole, and second threads formed on an outer circumferential surface of the body to correspond to the first threads.

9. The display device of claim 1 , wherein

the display module further includes a supporting frame having a surface supporting the display panel, and

the rotating magnet and the adjustment member are arranged on an opposite surface of the supporting frame than the display panel.

10. The display device of claim 9 , wherein

the display module further includes a cover frame covering a rear side of the supporting frame, and coming into contact with the supporter when the display module is coupled with the supporter, and

the adjustment member passes through the cover frame to push the supporter in the third direction when translating in the third direction.

11. A display system comprising:

a level adjustment device including a first magnet rotatable about a first rotation axis; and

at least one display assembly, each display assembly of the at least one display assembly including

a display module having a display panel facing forward in a first direction, with the level adjustment device being positionable in front of the display panel so that the first rotation axis is perpendicular to the first direction, and

a supporter magnetically coupled with the display module and supporting the display module,

wherein the display module further includes

a second magnet that is rotatable about a second rotation axis extending in a direction perpendicular to the first direction, and, when the level adjustment device is positioned in front of the display panel, is engageable with the first magnet via magnetic force so that the rotation of the first magnet about the first rotation axis causes the second magnet to rotate about the second rotation axis, and

an adjustment member that translates in the first direction or a third direction opposite the first direction due to the rotation of the second magnet caused by the rotation of the first magnet, to adjust a distance between the display module and the supporter and thereby adjust a level of the display panel in the first direction.

12. The display system of claim 11 , wherein

the display module further includes a coupling magnet t to magnetically couple the supporter to the display, and

the coupling magnet provides sufficient magnetic coupling so that the supporter and the display module remain magnetically coupled while the adjustment member translates.

13. The display system of claim 11 , wherein the level adjustment device further includes

a motor to rotate the first magnet, and

a switch to control driving of the motor.

14. The display system of claim 13 , wherein the level adjustment device further includes a stand to position the level adjustment device in front of the display panel on a corner of the display panel with the first rotation axis perpendicular to the first direction.

15. The display system of claim 11 , wherein

the display module further includes a worm gear transmitting rotational force of the second magnet to the adjustment member,

the worm gear includes a worm rotated along with the second magnet around a third rotation axis extending in a direction perpendicular to the first direction, and a worm wheel interlocked with the worm and rotated around a fourth rotation axis extending in the first direction, and

the adjustment member is rotationally coupled with the worm wheel around the fourth rotation axis.

16. The display system of claim 15 , wherein

the worm wheel is engaged and rotated with the worm when the second magnet is rotated, and

the adjustment member is moved in the first direction or the third direction while being engaged with the rotation of the worm.

17. The display system of claim 16 , wherein

the translation of the level adjustment device in the first direction causes the adjustment member to be inserted into the display module when the second magnet is rotated in one direction, and

the translation of the level adjustment device in the third direction causes the adjustment member to protrude out of the display module when the second magnet is rotated in a direction opposite to the one direction.

18. The display system of claim 11 , wherein the level adjustment device includes a range sensor to measure a distance between the display panel and the level adjustment device, and a controller configured to rotate the first magnet in accordance with the measured distance.

19. The display system of claim 18 , wherein

the at least one display assembly includes a first display assembly and a second display assembly arranged to be adjacent to the first display assembly in a direction perpendicular to the first direction,

the range sensor measures distances from the range sensor to the first and second display assemblies, and

the controller rotates the first magnet so that the distances from the range sensor to the first and second display assemblies become equal, when the distances from the range sensor to the first and second display assemblies are different.

20. A display device comprising:

a level adjustment device; and

first and second display assemblies, each including

a display module including a display panel facing forward in a first direction, and

a supporter magnetically coupled with the display module and supporting the display module, wherein

the display module further includes

a magnet that is rotatable about a rotation axis extending in a second direction perpendicular to the first direction, and is engageable with the level adjustment device via magnetic force to cause the magnet to rotate about the rotation axis, and

an adjustment member that translates in the first direction or a third direction opposite to the first direction due to the rotation of the magnet caused by the engagement of the magnet with the level adjustment device, to adjust a distance between the display module and the supporter and thereby adjust a level of the display panel in the first direction,

the first and second display assemblies are adjacent to each other in a direction perpendicular to the first direction, and

the level adjustment device is thereby configured to adjust the level of the display panel of the first display assembly in the first direction and/or the level of the display panel of the second display assembly in the first direction so that the display panels of the first and second display assemblies are aligned at the same level in the first direction.