| 摘要 |
PROBLEM TO BE SOLVED: To provide a portable terminal device that improves operability when getting back from a lock state for preventing a wrong operation during non-usage.SOLUTION: When a non-usage state continues or an electronic power source of a display part is turned off, a lock state is set that limits the execution of a predetermined process based on a touch operation. Then, when the electric power source of the display part is turned on, a lock screen based on a home screen is displayed. On the lock screen, a release icon is included that corresponds to each function icon. For example, when a release operation is performed that causes a lock release (key) icon to slide to the release icon corresponding to a mail application, the lock state is released, and the mail application is executed. A user releases the lock state with the same feeling as operating the home screen and can execute an optional application. Therefore, operability of the user on the home screen is improved. |
