| 摘要 |
A power saving method and a handheld electronic device using the same are provided. The method includes the following steps. A trigger signal is received. An user interface is displayed in a touch display panel unit of the handheld electronic device, wherein the user interface includes at least one control item and the at least one control item respectively corresponds to at least one working mode of the handheld electronic device. An operating signal corresponding to one of the at least one control item is received from the touch display panel unit. The working mode of the handheld electronic device is switched according to the operating signal and a working frequency of the handheld electronic device is adjusted according to the working mode. |
