Method for controlling flexible display, and electronic device

1. An electronic device comprising:

a flexible display;

a first rolling actuator configured to extend the flexible display in a first direction;

a second rolling actuator configured to extend the flexible display in a second direction opposite to the first direction; and

at least one processor electrically connected to the flexible display, the first rolling actuator, and the second rolling actuator,

wherein the at least one processor is configured to:

determine a mounting state of the electronic device;

based on the mounting state satisfying a designated condition, acquire position information of a peripheral device linked with the electronic device;

determine an extension direction of the flexible display based on the position information of the peripheral device; and

control the first rolling actuator and/or the second rolling actuator to extend the flexible display in the first direction or the second direction based on the determined extension direction.

2. The electronic device of claim 1 , wherein the at least one processor is configured to:

determine a folding angle between the electronic device and a keyboard device operatively connected to the electronic device using at least one acceleration sensor; and

based on the folding angle being within a first angle range, determine that the mounting state of the electronic device satisfies the designated condition.

3. The electronic device of claim 1 , wherein the at least one processor is configured to control the display to display an interface related to the peripheral device through a first area of the flexible display extended in the first direction to be visible and a second area of the flexible display extended in the second direction to be visible.

4. The electronic device of claim 1 , wherein the at least one processor is configured to:

based on the position of the peripheral device being in a first lateral direction with reference to the electronic device, control the electronic device to drive the first rolling actuator to extend the flexible display in the first direction corresponding to the first lateral direction; and

based on the position of the peripheral device being in a second lateral direction with reference to the electronic device, control the electronic device to drive the second rolling actuator to extend the flexible display in the second direction corresponding to the second lateral direction.

5. The electronic device of claim 1 , wherein the at least one processor is configured to:

detect an attachment/detachment signal of an electronic pen operatively connected to the electronic device;

in response to a detachment signal indicating that the electronic pen is detached from the electronic device, control the electronic device to extend the flexible display; and

in response to an attachment signal indicating that the electronic pen is attached to the electronic device, control the electronic device to contract the flexible display.

6. The electronic device of claim 5 , wherein the at least one processor is configured to determine an extension direction of the flexible display based on at least one of position information, direction information, or angle information of the electronic pen.

7. The electronic device of claim 5 , wherein the at least one processor is configured to, based on the electronic pen being detached from the electronic device, control the display to display a content related to the electronic pen on an area of the flexible display, and

wherein the content related to the electronic pen comprises at least one of a pen color or a pen thickness.

8. The electronic device of claim 1 , wherein the peripheral device corresponds to a portable terminal operatively connected to the electronic device, and

wherein the at least one processor is configured to:

control the electronic device to perform wireless communication with the mobile terminal; and

in response to performing of the wireless communication, control the electronic device to drive at least one of the first rolling actuator or the second rolling actuator to extend the flexible display.

9. The electronic device of claim 1 , wherein the at least one processor is configured to:

acquire a signal of a keyboard device operatively connected to the electronic device;

detect a floating mode in which the electronic device is floated from the keyboard device by a first distance or more, using at least one magnetic field sensor; and

in response to the floating mode, control the first rolling actuator and/or the second rolling actuator to extend the flexible display in the first direction and/or the second direction.

10. The electronic device of claim 1 , wherein the at least one processor is configured to:

control the electronic device to extend the flexible display by a first length; and

in response to an input in a state in which the flexible display is extended by the first length, control the electronic device to extend the flexible display by a second length longer than the first length.

11. A method of operating an electronic device, the method comprising:

determining a mounting state of the electronic device;

based on the mounting state satisfying a designated condition, acquiring position information of a peripheral device linked with the electronic device;

determining an extension direction of a flexible display based on the position information of the peripheral device; and

using a first rolling actuator or a second rolling actuator to extend the flexible display in a first direction or a second direction opposite to the first direction, based on the determined extension direction.

12. The method of claim 11 , further comprising:

determining a folding angle between the electronic device and a keyboard device operatively connected to the electronic device using at least one acceleration sensor; and

based on the folding angle being within a first angle range, determining that the mounting state of the electronic device satisfies the designated condition.

13. The method of claim 11 , further comprising:

detecting an attachment/detachment signal of an electronic pen operatively connected to the electronic device;

in response to a detachment signal indicating that the electronic pen is detached from the electronic device, extending the flexible display; and

in response to an attachment signal indicating that the electronic pen is attached to the electronic device, contracting the flexible display.

14. The method of claim 11 , further comprising:

based on the position of the peripheral device being in a first lateral direction with reference to the electronic device, driving the first rolling actuator to extend the flexible display in the first direction corresponding to the first lateral direction; and

based on the position of the peripheral device being in a second lateral direction with reference to the electronic device, driving the second rolling actuator to extend the flexible display in the second direction corresponding to the second lateral direction.

15. The method of claim 11 , wherein the peripheral device corresponds to a portable terminal operatively connected to the electronic device, and

wherein the method comprises:

performing wireless communication with the mobile terminal; and

in response to performing of the wireless communication, driving at least one of the first rolling actuator and/or the second rolling actuator to extend the flexible display.