A content display apparatus includes a plurality of communication antennas arranged on the same side as the display portion, a non-contact communication portion which performs non-contact communication with an information terminal apparatus by using each of the plurality of communication antennas, a content display control portion which displays a content on the display portion; and a communication antenna control portion which performs control to validate one communication antenna of the plurality of communication antennas based on a display position of the content displayed by the content display control portion, in which the information terminal apparatus performs non-contact communication with the validated communication antenna and obtains additional information of the displayed content.