PORTABLE INFORMATION TERMINAL, VIEW FIELD ANGLE CONTROL METHOD FOR PORTABLE INFORMATION TERMINAL, VIEW FIELD ANGLE CONTROL PROGRAM, AND RECORDING MEDIUM IN WHICH THE PROGRAM IS RECORDED

摘要

An operation mode of a portable telephone (1) can be switched between a manner mode and a mode not being the manner mode. Further, the portable telephone (1) has a view field angle control section (25) for controlling the angle of field of view of a main display section (12) depending on the operation mode, the manner mode or the mode not being the manner mode, and on the operating condition of an application executed in the portable telephone (1).