Foldable display device

1. A foldable display device, comprising:

a folding module comprising:

a first folding frame;

a second folding frame disposed opposite to the first folding frame; and

a connection structure connected to the first folding frame and the second folding frame, wherein the connection structure comprises a position restricting component, and

wherein the first folding frame and the second folding frame are folded or unfolded relating to a shaft of the folding module; when the first folding frame and the second folding frame are completely unfolded, a position restricting angle between the first folding frame and the second folding frame is restricted by the position restricting component; and the position restricting angle is greater than 180 degrees; and

a flexible display module disposed on the first folding frame, the second folding frame, and the connection structure, and simultaneously folded or unfolded with the first folding frame and the second folding frame;

wherein the connection structure comprises a first connection component and a second connection component, the first connection component is disposed on the first folding frame, the second connection component is disposed on the second folding frame, and the first connection component and the second connection component rotate relatively; the position restricting component comprises a first position restricting bar and a second position restricting bar, a first chute is defined in the first connection component, and a second chute is defined in the second connection component the first position restricting bar is slidably penetrated the first chute, the second position restricting bar is slidably penetrated the second chute, a displacement route of the first position restricting bar is restricted by the first chute, and a displacement route of the second position restricting bar is restricted by the second chute.

2. The foldable display device as claimed in claim 1 , wherein when an included angle between the first connection component and the second connection component is rotated to the position restricting angle, the position restricting component restricts the first connection component and the second connection component to rotate.

3. The foldable display device as claimed in claim 1 , wherein the first chute is parallel to the first folding frame, and the second chute is parallel to the second folding frame.

4. The foldable display device as claimed in claim 1 , wherein when the first folding frame and the second folding frame become to a completely unfolded state from a folded state,

the first position restricting bar slides toward a direction away from the shaft in the first chute, and

the second position restricting bar slides toward a direction away from the shaft in the second chute.

5. The foldable display device as claimed in claim 1 , wherein the first connection component comprises a first gear plate, the second connection component comprises a second gear plate, the first chute is defined in the first gear plate, and the second chute is defined in the second gear plate.

6. The foldable display device as claimed in claim 5 , wherein when the first folding frame and the second folding frame are folded or unfolded,

the first position restricting bar slides in the first chute and drives the first gear plate to rotate, and

the second position restricting bar slides in the second chute and drives the second gear plate to rotate.

7. The foldable display device as claimed in claim 6 , wherein when the first folding frame and the second folding frame are folded or unfolded, the first gear plate and the second gear plate are driven by the first position restricting bar and the second position restricting bar to rotate relatively.

8. The foldable display device as claimed in claim 6 , wherein the first connection component comprises a first transmission gear, the second connection component comprises a second transmission gear, the first transmission gear and the second transmission gear are engaged with each other, the first gear plate and the first transmission gear are engaged with each other, the second transmission gear and the second gear plate are engaged with each other, and the first transmission gear and the second transmission gear are disposed between the first gear plate and the second gear plate.

9. The foldable display device as claimed in claim 6 , wherein the first connection component comprises a first pivot plate, the second connection component comprises a second pivot plate, the first pivot plate and the second pivot plate are respectively disposed on the first folding frame and the second folding frame, and the first pivot plate and the second pivot plate are respectively connected to the first position restricting bar and the second position restricting bar.

10. The foldable display device as claimed in claim 9 , wherein the connection structure comprises a first connection unit, a second connection unit, and a third connection unit, the first component comprises a first connection shaft and a first elasticity element, the second connection component comprises a second connection shaft and a second elasticity element, the first connection shaft penetrates the third connection unit, the first gear plate, the second connection unit, the first elasticity element, and the first connection unit in sequence, and the second connection shaft penetrates the third connection unit, the second gear plate, the second connection unit, the second elasticity element, and the first connection unit in sequence.

11. The foldable display device as claimed in claim 1 , wherein the position restricting angle is 181.5 degrees.

12. A foldable display device, comprising:

a folding module comprising:

a first folding frame;

a second folding frame disposed opposite to the first folding frame; and

a connection structure connected to the first folding frame and the second folding frame, wherein the connection structure comprises a position restricting component, and

wherein the first folding frame and the second folding frame are folded or unfolded relating to a shaft of the folding module; when the first folding frame and the second folding frame are completely unfolded, a position restricting angle between the first folding frame and the second folding frame is restricted by the position restricting component; and the position restricting angle is greater than 180 degrees and less than 183 degrees; and

a flexible display module disposed on the first folding frame, the second folding frame, and the connection structure, and simultaneously folded or unfolded with the first folding frame and the second folding frame;

wherein the connection structure comprises a first connection component and a second connection component, the first connection component is disposed on the first folding frame, the second connection component is disposed on the second folding frame, and the first connection component and the second connection component rotate relatively; the position restricting component comprises a first position restricting bar and a second position restricting bar, a first chute is defined in the first connection component, and a second chute is defined in the second connection component; the first position restricting bar is slidably penetrated the first chute, the second position restricting bar is slidably penetrated the second chute, a displacement route of the first position restricting bar is restricted by the first chute, and a displacement route of the second position restricting bar is restricted by the second chute.

13. The foldable display device as claimed in claim 12 , wherein

when an included angle between the first connection component and the second connection component is rotated to the position restricting angle, the position restricting component restricts the first connection component and the second connection component to rotate.

14. A foldable display device comprising:

a folding module comprising:

a first folding frame;

a second folding frame disposed opposite to the first folding frame; and

a connection structure connected to the first folding frame and the second folding frame, wherein the connection structure comprises a position restricting component, and

wherein the first folding frame and the second folding frame are folded or unfolded relating to a shaft of the folding module; when the first folding frame and the second folding frame are completely unfolded, a position restricting angle between the first folding frame and the second folding frame is restricted by the position restricting component and the position restricting angle is greater than 180 degrees and less than 183 degrees; and

a flexible display module disposed on the first folding frame, the second folding frame, and the connection structure, and simultaneously folded or unfolded with the first folding frame and the second folding frame,

the connection structure comprises a first connection component and a second connection component, the first connection component is disposed on the first folding frame, the second connection component is disposed on the second folding frame, the first connection component and the second connection component rotate relatively,

when an included angle between the first connection component and the second connection component is rotated to the position restricting angle, the position restricting component restricts the first connection component and the second connection component to rotate; wherein the position restricting component comprises a first position restricting bar and a second position restricting bar, a first chute is defined in the first connection component, a second chute is defined in the second connection component, the first chute is parallel to the first folding frame, the second chute is parallel to the second folding frame, the first position restricting bar is slidably penetrated the first chute, the second position restricting bar is slidably penetrated the second chute, a displacement route of the first position restricting bar is restricted by the first chute, and a displacement route of the second position restricting bar is restricted by the second chute.

15. The foldable display device as claimed in claim 14 , wherein when the first folding frame and the second folding frame become to a completely unfolded state from a folded state, the first position restricting bar slides toward a direction away from the shaft in the first chute, and the second position restricting bar slides toward a direction away from the shaft in the second chute.

16. The foldable display device as claimed in claim 15 , wherein the first connection component comprises a first gear plate, the second connection component comprises a second gear plate, the first chute is defined in the first gear plate, the second chute is defined in the second gear plate, when the first folding frame and the second folding frame are folded or unfolded,

the first position restricting bar slides in the first chute and drives the first gear plate to rotate,

the second position restricting bar slides in the second chute and drives the second gear plate to rotate, when the first folding frame and the second folding frame are folded or unfolded, and the first gear plate and the second gear plate are driven by the first position restricting bar and the second position restricting bar to rotate relatively.

17. The foldable display device as claimed in claim 16 , wherein the first connection component comprises a first transmission gear and a first pivot plate, the second connection component comprises a second transmission gear and a second pivot plate, the first transmission gear and the second transmission gear are engaged with each other, the first gear plate and the first transmission gear are engaged with each other, the second transmission gear and the second gear plate are engaged with each other, the first transmission gear and the second transmission gear are disposed between the first gear plate and the second gear plate, the first pivot plate and the second pivot plate are respectively disposed on the first folding frame and the second folding frame, and the first pivot plate and the second pivot plate are respectively connected to the first position restricting bar and the second position restricting bar.

18. The foldable display device as claimed in claim 17 , wherein the connection structure comprises a first connection unit, a second connection unit, and a third connection unit, the first component comprises a first connection shaft and a first elasticity element, the second connection component comprises a second connection shaft and a second elasticity element, the first connection shaft penetrates the third connection unit, the first gear plate, the second connection unit, the first elasticity element, and the first connection unit in sequence, and the second connection shaft penetrates the third connection unit, the second gear plate, the second connection unit, the second elasticity element, and the first connection unit in sequence.