Display devices and the flatting method of the flexible display panels thereof

1. A display device, comprising:

a flexible display panel, a folded housing carrying the flexible display panel, and a force sensing system configured in a bending area of the flexible display panel, the bending area of the flexible display panel being bent frequently, and the force sensing system being configured for detecting a deformed state of the flexible display panel;

the folded housing comprising a first wing portion, a second wing portion, a hinge component connecting between the first wing portion and the second wing portion, a first actuator and a second actuator arranged below the first wing portion and the second wing portion, and the first actuator and the second actuator are mirror-symmetrical;

the flexible display panel protruding from the first wing portion and the second wing portion, and the flexible display panel connecting to the first actuator and the second actuator, the first actuator and the second actuator configured to apply traction forces to the first end portion and the second portion according to force information detected by the force sensing system, such that the flexible display panel being completely bonded on a surface of the folded housing.

2. The display device as claimed in claim 1 , wherein the first wing portion, the second wing portion, and the hinge component are on the same plane, and the folded housing comprises at least a flat state.

3. The display device as claimed in claim 2 , wherein the force sensing system comprises a force sensor and a controller, the controller respectively connects to the first actuator, the second actuator, and the force sensor; the controller drives the force sensor to detect and to receive the force information, and the controller calculates a value of the traction forces according to the force information to activate the first actuator and the second actuator, such that the flexible display panel being completely bonded on a surface of the folded housing.

4. The display device as claimed in claim 1 , wherein the first wing portion and the second wing portion rotate with respect to the hinge component, and a diagonal angle formed by the first wing portion and the second wing portion is in a range from 0 to 360 degrees.

5. The display device as claimed in claim 1 , wherein the first actuator comprises a first actuator motor and a first elastic-pushing component connecting with the first actuator motor, the second actuator comprises a second actuator motor and second first elastic-pushing component connecting with the second actuator motor, the first end portion and the second end portion respectively connects to free ends of the first elastic-pushing component and second elastic-pushing component.

6. The display device as claimed in claim 5 , wherein the first end portion and the second end portion respectively connects to the free ends of the first elastic-pushing component and second elastic-pushing component via dual-sided adhesive.

7. The display device as claimed in claim 1 , wherein the folded housing further comprises a first bottom cover and a second bottom cover, the first bottom cover engages with the first wing portion to clasp the first actuator between the first bottom cover and the first wing portion, the second bottom cover engages with the second wing portion to clasp the second actuator between the second bottom cover and the second wing portion.

8. A flatting method of the flexible display panels as claimed in claim 3 , wherein the method further comprises:

in step S 1 , activating the controller;

in step S 2 , driving the force sensor by the controller to detect a force (F) applied to the flexible display panel, and receiving the force information feedback by the force sensor;

in step S 3 , comparing the force indicated by the force information with a predetermined force value configured within the controller in advance;

stopping operations of the controller upon determining that the detected force (F) is not greater than the predetermined force value (H) (F≤H)

calculating a traction force value (F′) for stretching the flexible display panel completely upon determining that the detected force (F) is greater than the predetermined force value (H) (F>H);

in step S 4 , transmitting the traction force value (F′) to the first actuator and the second actuator to activate the first actuator and the second actuator, and applying the traction force value (F′) to the flexible display panel by the first actuator and the second actuator such that the flexible display panel being stretched completely.