Display device for displaying contents, server device for providing service based on ratings of contents, and methods thereof

1. A display device comprising:

a storage;

a communicator configured to transmit information related to content displayed on a display to a server device and receive information on a highest rating content, among a plurality of contents, from the server device, the content displayed on the display being displayed in real time; and

a controller configured to display a user interface (UI) object, which enables a user to change the content to the highest rating content on the display without displaying rating information of the content displayed on the display, in response to determining that the content displayed on the display is not the highest rating content, and to display the rating information of the content displayed on the display in response to determining that the content displayed on the display is the highest rating content,

wherein the controller is configured to store the information on the highest rating content in the storage, in response to the content displayed on the display not being changed to the highest rating content based on the UI object, and to display a recommendation message to recommend to a user to view the highest rating content on the display based on the information stored in the storage in response to an occurrence of a predetermined event, and

wherein the highest rating content comprises content that ranks top in a moment ratings or top in a change rate in real time ratings.

2. The display device of claim 1 , wherein the controller is configured to control the communicator to transmit region information of a region where the display device is located and time information to the server device along with the information related to the content,

wherein the real time ratings are ratings for contents which are viewed in real time in the region where the display device is located, and wherein the highest rating content is content that also satisfies at least one other condition of a second condition in which the highest ratings of the content exceed a predetermined first threshold, a third condition in which a change rate in the real time ratings of the content exceeds a predetermined threshold change rate, a fourth condition in which the lowest ratings of the content exceed a predetermined second threshold and the change rate in the real time ratings of the content exceeds the predetermined threshold change rate, a fifth condition in which average ratings from a start point of the content to an end point of the content exceed a predetermined third threshold, and a sixth condition in which the content has ratings greater than the ratings of other contents by more than a predetermined fourth threshold.

3. The display device of claim 1 , wherein the UI object is displayed on a border of a screen of the display, and

wherein the UI object comprises a message regarding the highest rating content and a menu which enables a user to change the content to the highest rating content.

4. The display device of claim 1 , wherein the UI object comprises a circular object that is displayed on a corner in a screen of the display, and

wherein, in response to determining that a user manipulation is input for the circular object, the controller is configured to display the highest rating content superimposed over a portion of the content in a Picture-In-Picture (PIP) form or a Picture-By-Picture (PBP) form and move a display position of the circular object.

5. The display device of claim 1 , wherein the UI object is a highlight mark that is displayed on a boundary part of a border of a screen of the display, and

wherein, when the highlight mark is displayed and in response to determining that a touch manipulation in a predetermined direction is input on a touch screen provided on a remote controller for controlling the display device, the controller changes the content to the highest rating content.

6. The display device of claim 1 , wherein, when the UI object is displayed and in response to determining that a predetermined user manipulation is input on a remote controller for controlling the display device, the controller changes the content to the highest rating content.

7. A method for displaying content of a display device, the method comprising:

displaying content on a display in real time;

transmitting information related to the content to a server device;

receiving information related to a highest rating content among a plurality of contents from the server device;

displaying a user interface (UI) object, which enables a user to change the content to the highest rating content without displaying rating information of the content displayed on the display, in response to determining that the content displayed on the display is not the highest rating content;

displaying the rating information of the content displayed on the display, in response to determining that the content displayed on the display is the highest rating content;

storing the information related to the highest rating content, in response to the content displayed on the display not being changed to the highest rating content based on the UI object; and

displaying a recommendation message to recommend to a user to view the highest rating content based on the stored information in response to an occurrence of a predetermined event,

wherein the highest rating content comprises content that ranks top in a moment ratings or top in a change rate in real time ratings.

8. The method of claim 7 , further comprising transmitting region information of a region where the display device is located and time information to the server device,

wherein the real time ratings are ratings for contents which are viewed in real time in the region where the display device is located, and wherein the highest rating content is content that also satisfies at least one other condition of a second condition in which the highest ratings of the content exceed a predetermined first threshold, a third condition in which a change rate in the real time ratings of the content exceeds a predetermined threshold change rate, a fourth condition in which the lowest ratings of the content exceed a predetermined second threshold and the change rate in the real time ratings of the content exceeds the predetermined threshold change rate, a fifth condition in which average ratings from a start point of the content to an end point of the content exceed a predetermined third threshold, and a sixth condition in which the content has ratings greater than the ratings of other content by more than a predetermined fourth threshold.

9. The method of claim 7 , wherein the UI object is displayed on a border of a screen of the display, and

wherein the UI object comprises a message regarding the highest rating content and a menu which enables a user to change the content to the highest rating content.

10. The method of claim 7 , wherein the UI object comprises a circular object that is displayed on a corner in a screen of the display, and

wherein the displaying the content comprises, in response to determining that a user manipulation is input for the circular object, displaying the highest rating content superimposed over the content in a Picture-In-Picture (PIP) form or a Picture-By-Picture (PBP) form, and moving a display position of the circular object.

11. The method of claim 7 , wherein the UI object is a highlight mark that is displayed on a boundary part of a border of a screen of the display, and

wherein the displaying the content comprises, when the highlight mark is displayed and in response to determining that a touch manipulation is input in a predetermined direction on a touch screen provided on a remote controller for controlling the display device, changing the content to the highest rating content.

12. The method of claim 7 , further comprising, when the UI object is displayed and in response to determining that a predetermined user manipulation is input on a remote controller for controlling the display device, changing the content to the highest rating content.