Patent ID: 8483779

Claim:
A mobile communication terminal, comprising: a display device; a touch panel which is arranged on a top surface of said display device; a power supply portion which supplies an electric power of a predetermined voltage from a battery; a controller which outputs an active signal which sets said touch panel to an active state that said touch panel is operable or a standby signal which sets said touch panel to a standby state that said touch panel is inoperable by determining a condition; and a touch panel controller which controls the electric power supplied from said power supply portion on the basis of said active signal or said standby signal to set said touch panel to said active state or said standby state, wherein said controller determines a first condition at a time that a phone call is in progress, and an operation other than a phone call cannot be performed, determines a second condition at a time that a phone call is in progress, but an operation other than a phone call can be performed, outputs a standby signal when the first condition is determined, and outputs an active signal when the second condition is determined, said standby signal or said active signal being given to said touch panel controller.