Patent ID: 8878834

Claim:
An information display device in which a display section displays plural pieces of data stored in a data storage section, said information display device further comprising: a communication section configured to receive pieces of data from a mobile communication device and to monitor for a registered mobile communication device or a non-registered mobile communication device in a device detectable area in which presence of the mobile communication device is detected, wherein the non-registered mobile communication device is a mobile communication device for which no identification information and pieces of data have been received and stored in the data storage section; a device detector configured to, upon detecting the mobile communication device in the device detectable area, obtaining identification information of the mobile communication device, and identifying the mobile communication device based on identification information of the detected mobile communication device stored in association with part of the plural pieces of data stored in the data storage section; and a data display controller configured to change, responsive to the device detector detecting the mobile communication device, depending on a first display control in which the display section displays one or more first pieces of data, the way to display the one or more first pieces of data of the part of the plural pieces of data stored in association with the identification information identified by the device detector, out of the plural pieces of data stored in the data storage section, wherein the way to display the one or more first pieces of data is different depending on whether or not a mobile communication device is detected or not, and whether the detected mobile communication device is a registered mobile communication device or is a non-registered mobile communication device, wherein the way to display includes a default way to display for a case that a mobile communication device is not detected in the device detectable area; the device detector configured to detect that the mobile communication device is moved out of the device detectable area, the data display controller configured to change, responsive to the device detector detecting that the mobile communication device is moved out of the device detectable area, the way to display the one or more first pieces of data back to the way to display before the device detector had detected the mobile communication device in the device detectable area, the first display control being different from a second display control which is carried out with respect to one or more second pieces of data other than the one or more first pieces of data, and the first display control changing the way to display the one or more first pieces of data by changing at least one of (i) the number of first pieces of data to be displayed, (ii) an order in which the first pieces of data are displayed, and (iii) intervals at which the first pieces of data are displayed.