Abstract: A portable electronic device comprises a battery, a display, a switch and a processor. The battery is for supplying operating power. The switch includes a magnetic element and a sensor configured for detecting the magnetic flux of the magnetic element. The sensor has a first predetermined value for turning on the switch. The switch is turning on in response to the magnetic flux of the magnetic element detected by the sensor being equal to the first predetermined value of the sensor. The processor is coupled to the switch, the battery and the display. The processor responsive to turning on of the switch for controlling supply of operating power from the battery to the display. The processor maintains supply of operating power from the battery to the display in response to turning on of the switch.

Abstract: An electronic device bearing seat includes a casing, a hook, a first resilient element, an ejector, a second resilient element, a pivot, a connecting rod and an ejecting button. The casing has a first opening and a second opening. The hook is movably provided in the first opening and includes a first withstanding post and a recess. The first resilient element is disposed between the casing and the hook. The ejector is movably provided in the second opening and is detachably fastened in the recess. The ejector includes a second withstanding post. The second resilient element is disposed between the casing and the ejector. The shaft is disposed in the casing. The connecting rod is rotatably disposed at and passed by the pivot and pushes against the first and second withstanding post. The ejecting button is movably disposed on the casing and abuts against the connecting rod.

Abstract: A portable electronic device comprises a battery, a display, a switch and a processor. The battery is for supplying operating power. The switch includes a magnetic element and a sensor configured for detecting the magnetic flux of the magnetic element. The sensor has a first predetermined value for turning on the switch. The switch is turning on in response to the magnetic flux of the magnetic element detected by the sensor being equal to the first predetermined value of the sensor. The processor is coupled to the switch, the battery and the display. The processor responsive to turning on of the switch for controlling supply of operating power from the battery to the display. The processor maintains supply of operating power from the battery to the display in response to turning on of the switch.

Abstract: An electronic device bearing seat includes a casing, a hook, a first resilient element, an ejector, a second resilient element, a pivot, a connecting rod and an ejecting button. The casing has a first opening and a second opening. The hook is movably provided in the first opening and includes a first withstanding post and a recess. The first resilient element is disposed between the casing and the hook. The ejector is movably provided in the second opening and is detachably fastened in the recess. The ejector includes a second withstanding post. The second resilient element is disposed between the casing and the ejector. The shaft is disposed in the casing. The connecting rod is rotatably disposed at and passed by the pivot and pushes against the first and second withstanding post. The ejecting button is movably disposed on the casing and abuts against the connecting rod.