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 . <EOS>