The control unit and the portable terminal, control manner, the angle of visibility control means which configurate the angle of visibility

摘要

PPROBLEM TO BE SOLVED: To realize a control device which controls an application simplified in a complicated operation such as authentication while securing security. PSOLUTION: The control device comprises: a view angle control unit 54 for setting a view angle in a display unit 60; a program executor 44 for executing an application; and a security management 42 for controlling at least one of starting and finish of the application, and reference and authentication processing of data on the basis of the setting of a view angle, so that the application is controlled without having complicated operation while securing security to some degree by setting the view angle. There are also provided a portable terminal, a control method , a control program, and a recording medium. PCOPYRIGHT: (C)2008,JPO&INPIT