Display device with moving controller, the controller capable of moving horizontally

1. A display device comprising:

a display body and a support body connected to and supporting the display body, the support body comprising:

a plurality of trolley wheel assemblies at a bottom of the support body;

at least one stopper mechanism configured to selectively brake the trolley wheel assemblies and thereby hold the display device in a fixed position, and release the trolley wheel assemblies so that the display device is freely movable along a surface; and

a driver configured for controlling the at least one stopper mechanism whether to brake the trolley wheel assemblies or not, and the driver comprising at least one steel wire connected to the at least one stopper mechanism.

2. The display device in claim 1 , wherein the driver further comprises a knob, a screw, a gear, and a round steering board comprising at least one steering protrusion, the knob being connected to one end of the screw, the other end of the screw comprising a plurality of whorls engaging the gear, and the at least one steering protrusion being connected with the at least one steel wire.

3. The display device in claim 2 , wherein each of the at least one stopper mechanism comprises a lever and a brake, the lever comprising a pivot axle, the pivot axle disposed in the middle of the lever, one end of the lever being connected to a corresponding one of the at least one steel wire, and the other end of the lever being connected to the brake.

4. The display device in claim 3 , wherein the lever is bent shaped.

5. The display device in claim 3 , wherein each of the at least one stopper mechanism further comprises a horizontal spring and a vertical spring, one end of the lever being connected to the corresponding one of the at least one steel wire via the horizontal spring, and the other end of the lever being connected to the brake via the vertical spring.

6. The display device in claim 5 , wherein each of the at least one stopper mechanism further comprises a post connected between the vertical spring and the brake.

7. The display device in claim 3 , wherein each of the trolley wheel assemblies comprises a holding board, a spindle, a wheel, and a wheeling structure, the wheeling structure comprising a pair of arms, a connection board and an axle, the arms connected between the connection board and the axle, the connection board being disposed underneath the holding board, the axle being disposed at a center of the wheel, the connection board defining a hole in the middle, and the spindle being disposed on the holding board and vertically penetrating the hole of the connection board.

8. The display device in claim 7 , wherein the support body further comprises a base for receiving the driver and a neck formed on the middle of a top surface of the base, the display body being pivotally connected with the neck.

9. The display device in claim 8 , wherein the neck and the base are integrally formed into one piece.

10. The display device in claim 8 , wherein the neck defines a through hole and a groove in a middle position of the neck, the groove in communication with the through hole, and the neck comprising a block disposed in the groove.

11. The display device in claim 10 , wherein the base defines at least a location slot perpendicular and adjacent to an edge of the top surface of the base and corresponding to the block.

12. The display device in claim 11 , wherein, the block is capable of moving along the groove.

13. The display device in claim 12 , wherein the lever further comprises a location protrusion extending upwardly from the end connected to the horizontal spring, the location protrusion partially protruding out of the slot and being capable of moving along the slot under external force.

14. The display device in claim 2 , wherein the support body comprises four trolley wheel assemblies and four stopper mechanisms, the steering board comprising four steering protrusions arranged symmetrically at the border of the steering board.

15. The display device in claim 1 , wherein the display body is a flat panel display.

16. The display device in claim 15 , wherein the flat panel display is a liquid crystal display.