Display apparatus for classifying and searching content, and method thereof

A display apparatus, comprising:

• a display;
• and
• a controller configured to:
• display a content image, and a plurality of representative image items in a representative image displaying region, the representative image displaying region being located at a lower end of the display,
• in the representative image displaying region, display a first representative image item, which is representing a first content and located at a central portion of the representative image displaying region, in a first display scheme, and display remaining representative image items in a second display scheme, wherein the first representative image item is displayed in the first display scheme with a first aspect ratio and the remaining representative image items are displayed in the second display scheme with a second aspect ratio,
• based on a first user interaction for moving the first representative image item, move the first representative image item from the central portion to one side of the representative image displaying region within the representative image displaying region,
• while the first representative image item is being moved to the one side of the representative image displaying region, change display of the first representative image item from the first display scheme to the second display scheme, and
• while the first representative image item is displayed in the first display scheme, display a first representative image of a content on the first representative image item, and while the first representative image item is displayed in the second display scheme, display a second representative image of the content on the first representative image item.