Priority control for directional display device

An information processing method in which a computer connected to a display device capable of varying display contents according to display directions executes the steps of:

• acquiring position information on a first user and position information on a second user who differs from the first user;
• searching, from a table which stores a display direction and a viewpoint position from where contents displayed in the display direction is viewable in association with each other, the display direction associated with a viewpoint position which matches or which is nearest to the position indicated by the position information of the first user and determining the searched display direction as the display direction for the first contents, and searching the display direction associated with a viewpoint position which matches or which is nearest to the position indicated by the position information of the second user from the table and determining the searched display direction as the display direction for the second contents;
• causing the display device to display the first contents in the display direction for the first contents and to display the second contents in the display direction for the second contents;
• detecting that the position indicated by the position information on the first user and the position indicated by the position information on the second user are in a predetermined positional relationship in which display contents displayed by the display device in a same display direction are viewable;
• and
• judging whether or not the first user has viewing authority and whether or not the second user has viewing authority with respect to the first contents and the second contents, wherein
• when the predetermined positional relationship is detected by the positional relationship detecting unit, the display control unit causes the display device to stop display of contents, for which at least one of the first user and the second user does not have viewing authority, among the first contents and the second contents.

A computer-readable non-transitory recording medium recorded with a program for causing a computer connected to a display device capable of varying display contents according to display directions to function as:

• a position information acquiring unit to acquire position information on a first user and position information on a second user who differs from the first user;
• a display direction determining unit to search, from a table which stores a display direction and a viewpoint position from where contents displayed in the display direction is viewable in association with each other, the display direction associated with a viewpoint position which matches or which is nearest to the position indicated by the position information of the first user and determine the searched display direction as the display direction for the first contents, and search the display direction associated with a viewpoint position which matches or which is nearest to the position indicated by the position information of the second user from the table and determine the searched display direction as the display direction for the second contents;
• a display control unit to cause the display device to display the first contents in the display direction for the first contents and to display the second contents in the display direction for the second contents;
• a positional relationship detecting unit to detect that the position indicated by the position information on the first user and the position indicated by the position information on the second user are in a predetermined positional relationship in which display contents displayed by the display device in a same display direction are viewable;
• and
• a viewing authority judging unit to judge whether or not the first user has viewing authority and whether or not the second user has viewing authority with respect to the first contents and the second contents, wherein
• when the predetermined positional relationship is detected by the positional relationship detecting unit, the display control unit causes the display device to stop display of contents, for which at least one of the first user and the second user does not have viewing authority, among the first contents and the second contents.