Display apparatus, server, system and information-providing methods thereof

Abstract

Disclosed are a display apparatus, a server, a system and information providing methods thereof, in which the display apparatus can provide personalization or grouping information optimized to a changed individual or group without substantive authentication and login procedures for a user even though the individual or group using the corresponding apparatus is changed, The display apparatus includes: a display configured to display an image; a communicator configured to communicate with a server; a user recognizer configured to acquire recognition information about a user; a storage configured to store reference recognition information for determining whether the user is a server user having relation with the display apparatus; and a controller configured to determine the server user corresponding to the user by comparing the recognition information about the user acquired by the user recognizer with the reference recognition information stored in the storage, request and receive server information including personalization information of the determined server user from the server, and display requested information on the display based on the received server information when the user makes a request for the information.