Electronic device and control method therefor

1. An electronic device comprising:

a first display displaying first content;

a second display sliding on the first display, and displaying second content; and

at least one processor configured to display at least one piece of content related to at least one of the first content or the second content on at least one of the first display or the second display, according to an overlap between the first display and the second display, incurred by the sliding,

wherein, based on the second display being slid so as to overlap with the first display over a partial area, the at least one processor is further configured to:

display, in the partial area on the second display, guide information indicating a first direction and a second direction, and

wherein, based on the second display being slid in the first direction so as to either overlap wholly with the first display or based on the second display being slid in the second direction so as to decrease at least the partial area, the at least one processor is further configured to:

execute an application related to the second content being displayed on the second display, and

display an execution screen of the application on at least one of the first display or the second display.

2. The electronic device of claim 1 , wherein the second display includes a transparent display.

3. The electronic device of claim 1 ,

wherein the second content includes person information, and

wherein the application includes at least one of a contacts application for requesting dialing to the person information, a message application for transmitting a message to the person information, a social network service (SNS) application for uploading an image including the person information, or a message transmission application for transmitting an image including the person information to the person information.

4. The electronic device of claim 1 ,

wherein the second content includes place information, and

wherein the application includes at least one of a navigation application for performing navigation to the place information, a call application for requesting dialing to a contact number corresponding to the place information, a map application for displaying location information related to the place information, a sound source play application for playing sound source information corresponding to the place information, or a social network service (SNS) application for uploading an image including the place information.

5. The electronic device of claim 1 , wherein the second content includes sound source information, and the application includes a social network service (SNS) application for uploading the sound source information.

6. The electronic device of claim 1 , wherein the second content includes social network service (SNS) state information, and the application includes a sound source play application for playing or downloading a sound source corresponding to the SNS state information.

7. The electronic device of claim 1 , wherein the at least one processor is further configured to display the at least one piece of content according to a first sliding incurring the overlap between the second display and the first display over the at least the partial area, and a second sliding incurring a change in the at least the partial area after the first sliding.

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

select a display for displaying the at least one piece of content related to the at least one of the first content or the second content, between the first display and the second display, and

display the at least one piece of content related to the at least one of the first content or the second content on the selected display.

9. A method of controlling an electronic device, the method comprising:

displaying first content;

displaying second content;

displaying at least one piece of content related to at least one of the first content or the second content on at least one of a first display or a second display, according to an overlap between the first display and the second display, incurred by sliding;

based on the second display being slid so as to overlap with the first display over a partial area, displaying, in the partial area on the second display, guide information indicating a first direction and a second direction; and

based on the second display being slid in the first direction so as to either overlap wholly with the first display or based on the second display being slid in the second direction so as to decrease at least the partial area:

executing an application related to the second content being displayed on the second display, and

displaying an execution screen of the application on at least one of the first display or the second display.

10. The method of claim 9 , wherein the displaying of the at least one piece of content related to the at least one of the first content or the second content on at least one of the first display or the second display comprises displaying the at least one piece of content related to the at least one of the first content and the second content on the second display including a transparent display.

11. The method of claim 9 ,

wherein the displaying of the second content comprises displaying person information, and

wherein the displaying of the execution screen of the application on the at least one of the first display or the second display comprises displaying, on the at least one of the first display or the second display, the execution screen of the application including at least one of a contacts application for requesting dialing to the person information, a message application for transmitting a message to the person information, a social network service (SNS) application for uploading an image including the person information, or a message transmission application for transmitting the image including the person information to the person information.

12. The method of claim 9 ,

wherein the displaying of the second content comprises displaying place information, and

wherein the displaying of the execution screen of the application on the at least one of the first display or the second display comprises displaying, on the at least one of the first display or the second display, the execution screen of the application including at least one of a navigation application for performing navigation to the place information, a call application for requesting dialing to a contact number corresponding to the place information, a map application for displaying location information related to the place information, a sound source play application for playing sound source information corresponding to the place information, and a social network service (SNS) application for uploading an image including the place information.