A display apparatus, comprising: a load; a main chip; a power source configured to supply electric power to the load; a power supply circuit connected with the power source and the load, and configured to turn on or off an electric path between the power source and the load, wherein the power supply circuit comprises a metal oxide semiconductor field effect, MOS, transistor, a source electrode of the MOS transistor is connected with the power source, and a drain electrode of the MOS transistor is connected with the load; and a control circuit connected with the power source and the power supply circuit, and configured to receive a control signal from the main chip and control the power supply circuit to turn on or off so as to determine whether the power source supplies power to the load, and the control circuit comprising a capacitor, a first resistor, a diode, a second resistor, a grounding switch comprising a fourth resistor and a triode, and a connection wire, wherein a first end of the capacitor and a first end of the first resistor are connected with the power source and the source electrode of the MOS transistor, wherein a second end of the capacitor is connected with a cathode of the diode, a gate electrode of the MOS transistor and a first end of the second resistor, wherein a second end of the first resistor is connected with an anode of the diode, wherein a second end of the second resistor is connected with a first end of the fourth resistor, wherein a base electrode of the triode is configured to receive the control signal, a collector electrode of the triode is connected with a second end of the fourth resistor, and an emitter electrode of the triode is grounded, and wherein a first end of the connection wire is connected with the second end of the first resistor and the anode of the diode, and a second end of the connection wire is connected with the second end of the second resistor and the first end of the fourth resistor. a load; a main chip; a power source configured to supply electric power to the load; a power supply circuit connected with the power source and the load, and configured to turn on or off an electric path between the power source and the load, wherein the power supply circuit comprises a metal oxide semiconductor field effect, MOS, transistor, a source electrode of the MOS transistor is connected with the power source, and a drain electrode of the MOS transistor is connected with the load; and a control circuit connected with the power source and the power supply circuit, and configured to receive a control signal from the main chip and control the power supply circuit to turn on or off so as to determine whether the power source supplies power to the load, and the control circuit comprising a capacitor, a first resistor, a diode, a second resistor, a grounding switch comprising a fourth resistor and a triode, and a connection wire, wherein a first end of the capacitor and a first end of the first resistor are connected with the power source and the source electrode of the MOS transistor, wherein a second end of the capacitor is connected with a cathode of the diode, a gate electrode of the MOS transistor and a first end of the second resistor, wherein a second end of the first resistor is connected with an anode of the diode, wherein a second end of the second resistor is connected with a first end of the fourth resistor, wherein a base electrode of the triode is configured to receive the control signal, a collector electrode of the triode is connected with a second end of the fourth resistor, and an emitter electrode of the triode is grounded, and wherein a first end of the connection wire is connected with the second end of the first resistor and the anode of the diode, and a second end of the connection wire is connected with the second end of the second resistor and the first end of the fourth resistor.