Foldable electronic device and method for displaying information in foldable electronic device

1. An electronic device comprising:

a foldable housing including:

a hinge;

a first housing connected to the hinge, and including a first face oriented in a first direction, and a second face oriented in a second direction opposite the first direction; and

a second housing connected to the hinge, and including a third face oriented in a third direction, and a fourth face oriented in a fourth direction opposite the third direction, the second housing being folded to the first housing about the hinge,

wherein, when the foldable housing is in a folded state, the first face faces the third face and when the foldable housing is in a fully unfolded state, the third direction conforms to the first direction;

a sensor module;

a display including a first portion and a second portion extending from the first face to the third face so as to form the first face and the third face, respectively;

a processor operatively connected with the sensor module and the display; and

a memory operatively connected with the processor,

wherein the memory stores instructions that, when executed, cause the processor to:

determine a visual line of a user, based on obtaining direction information of the electronic device in the fully unfolded state;

sense an angle between the first housing and the second housing when folding of the foldable housing is sensed via the sensor module;

determine a direction of the first face and a direction of the third face; and

determine at least one of a position or a size of a content displayed on the display, based on at least one of the visual line of the user, the direction of the first face, or the direction of the third face.

2. The electronic device of claim 1 , wherein, as an operation of determining the visual line of the user, the instructions further cause the processor to:

determine the direction of the first face or the direction of the third face when the foldable housing is in the unfolded state; and

determine the direction of the first face or the direction of the third face as the visual line of the user.

3. The electronic device of claim 1 , wherein the sensor module includes a first motion sensor embedded in the first housing, and

wherein, as an operation of determining the direction of the first face and the direction of the third face, the instructions further cause the processor to:

determine the direction of the first face using the first motion sensor; and

determine the direction of the third face, based on the direction of the first face and the angle between the first housing and the second housing.

4. The electronic device of claim 1 , wherein the sensor module includes a first motion sensor embedded in the first housing and a second motion sensor embedded in the second housing, and

wherein, as an operation of determining the direction of the first face and the direction of the third face, the instructions further cause the processor to:

determine the direction of the first face using the first motion sensor; and

determine the direction of the third face using the second motion sensor.

5. The electronic device of claim 1 , wherein the instructions further cause the processor to:

determine a display region and a non-display region in the display, based on at least one of the visual line of the user, the direction of the first face, or the direction of the third face; and

display the content on the determined display region.

6. The electronic device of claim 5 , wherein the instructions further cause the processor to:

determine at least one of a position or an area of the display region, based on at least one of the visual line of the user, the direction of the first face, or the direction of the third face.

7. The electronic device of claim 5 , wherein the instructions further cause the processor to:

sense a rotation of the electronic device about a folding axis of the hinge while the content is displayed on the display region;

re-determine the direction of the first face and the direction of the third face, based on a rotation direction of the electronic device; and

adjust at least one of a position or a size of the content, based on the re-determined directions of the first face and the third face.

8. The electronic device of claim 7 , wherein the first portion of the display is disposed to the right of the second portion when the display is viewed from above, and

wherein the instructions further cause the processor to:

move the content displayed on the display region in a fifth direction from the second portion toward the first portion when the electronic device rotates counterclockwise about the folding axis of the hinge; and

move the content displayed on the display region in a sixth direction from the first portion toward the second portion when the electronic device rotates clockwise about the folding axis of the hinge.

9. The electronic device of claim 1 , wherein the instructions further cause the processor to:

receive a notification event when the electronic device is in a fully folded state and the visual line of the user is perpendicular to a ground;

sense unfolding of the foldable housing after receiving the notification event;

check whether a condition in which the angle between the first housing and the second housing is maintained in a predetermined range for a predetermined time is satisfied; and

cause a message corresponding to the notification event to be displayed on at least one of the first face and the third face parallel to the ground when the condition is satisfied.

10. The electronic device of claim 9 , wherein the instructions further cause the processor to:

cause the message corresponding to the notification event to be displayed in a direction parallel to the hinge.

11. The electronic device of claim 9 , wherein the sensor module includes:

an angle sensor; and

a motion sensor disposed in the first housing or the second housing.

12. A method for displaying information in an electronic device that includes a foldable housing including a hinge; a first housing connected to the hinge, and including a first face oriented in a first direction, and a second face oriented in a second direction opposite the first direction; and a second housing connected to the hinge, and including a third face oriented in a third direction, and a fourth face oriented in a fourth direction opposite the third direction, the second housing being folded to the first housing about the hinge, in which, when the foldable housing is in a folded state, the first face faces the third face and when the foldable housing is in a fully unfolded state, the third direction conforms to the first direction; a sensor module; and a display including a first portion and a second portion extending from the first face to the third face so as to form the first face and the third face, respectively,

wherein the method comprises:

determining a visual line of a user, based on obtaining direction information of the electronic device in the fully unfolded state;

sensing an angle between the first housing and the second housing when folding of the foldable housing is sensed via the sensor module;

determining a direction of the first face and a direction of the third face; and

determining at least one of a position or a size of a content displayed on the display, based on at least one of the visual line of the user, the direction of the first face, or the direction of the third face.

13. The method of claim 12 , wherein determining the position of the content displayed on the display includes:

determining a display region and a non-display region in the display, based on at least one of the visual line of the user, the direction of the first face, or the direction of the third face; and

displaying the content on the determined display region.

14. The method of claim 13 , wherein determining the position of the content displayed on the display includes:

determining at least one of a position or an area of the display region, based on at least one of the visual line of the user, the direction of the first face, or the direction of the third face.

15. The method of claim 14 , further comprising:

sensing a rotation of the electronic device about a folding axis of the hinge while the content is displayed on the display region;

re-determining the direction of the first face and the direction of the third face, based on a rotation direction of the electronic device; and

adjusting at least one of a position or a size of the content, based on the re-determined directions of the first face and the third face.

16. The method of claim 15 , wherein the first portion of the display is disposed to the right of the second portion when the display is viewed from above, and

wherein adjusting the position of the content, based on the re-determined directions of the first face and the third face includes:

moving the content displayed on the display region in a fifth direction from the second portion toward the first portion when the electronic device rotates counterclockwise about the folding axis of the hinge; and

moving the content displayed on the display region in a sixth direction from the first portion toward the second portion when the electronic device rotates clockwise about the folding axis of the hinge.

17. The method of claim 12 , further comprising:

receiving a notification event when the electronic device is in a fully folded state and the visual line of the user is perpendicular to a ground;

sensing unfolding of the foldable housing after receiving the notification event;

checking whether a condition in which the angle between the first housing and the second housing is maintained in a predetermined range for a predetermined time is satisfied; and

causing a message corresponding to the notification event to be displayed on at least one of the first face and the third face parallel to the ground when the condition is satisfied.

18. The method of claim 17 , further comprising:

causing the message corresponding to the notification event to be displayed in a direction parallel to the hinge.

19. A non-transitory computer-readable storage medium with instructions stored thereon executed by at least on processor to perform a method of operating an electronic device that includes a foldable housing including a hinge; a first housing connected to the hinge, and including a first face oriented in a first direction, and a second face oriented in a second direction opposite the first direction; and a second housing connected to the hinge, and including a third face oriented in a third direction, and a fourth face oriented in a fourth direction opposite the third direction, the second housing being folded to the first housing about the hinge, in which, when the foldable housing is in a folded state, the first face faces the third face and when the foldable housing is in a fully unfolded state, the third direction conforms to the first direction; a sensor module; and a display including a first portion and a second portion extending from the first face to the third face so as to form the first face and the third face, respectively,

wherein the method comprises:

determining a visual line of a user, based on obtaining direction information of the electronic device in the fully unfolded state;

sensing an angle between the first housing and the second housing when folding of the foldable housing is sensed via the sensor module;

determining a direction of the first face and a direction of the third face; and

determining at least one of a position or a size of a content displayed on the display, based on at least one of the visual line of the user, the direction of the first face, or the direction of the third face.

20. The non-transitory computer-readable storage medium of claim 19 , wherein the method further comprises:

sensing a rotation of the electronic device about a folding axis of the hinge while the content is displayed;

re-determining the direction of the first face and the direction of the third face, based on a rotation direction of the electronic device; and

adjusting at least one of a position or a size of the content displayed in the display region, based on the re-determined directions of the first face and the third face.