A display screen, used in an electronic device and comprising: a display unit, a gate driver on array circuit connected to the display unit, and a detection unit connected to the gate driver on array circuit, wherein the gate driver on array circuit is configured to: generate a scan signal, and drive, by using the scan signal, the display unit to perform displaying; and the detection unit is configured to: detect the scan signal of the gate driver on array circuit, and obtain and output a feedback signal, wherein the detection unit comprises a first transistor, a second transistor, and a third transistor, characterised in that the feedback signal is configured to determine whether a plurality of gate lines of the display unit are driven simultaneously; a gate of the first transistor is configured to receive a first voltage, a source of the first transistor is configured to receive a second voltage, a drain of the first transistor is connected to a source of the second transistor, the first voltage is a switch-on voltage of a transistor in the gate driver on array circuit, the second voltage is a switch-off voltage of the transistor in the gate driver on array circuit, and a common terminal of the drain of the first transistor and the source of the second transistor is configured to output the feedback signal; a gate of the second transistor is connected to a scan signal output by one GoA unit of the gate driver on array circuit, and a drain of the second is connected to a drain of the third transistor; and a gate of the third transistor is connected to a scan signal output by another GoA unit of the gate driver on array circuit, and a source of the third transistor is configured to receive the first voltage. the gate driver on array circuit is configured to: generate a scan signal, and drive, by using the scan signal, the display unit to perform displaying; and the detection unit is configured to: detect the scan signal of the gate driver on array circuit, and obtain and output a feedback signal, wherein the detection unit comprises a first transistor, a second transistor, and a third transistor, characterised in that the feedback signal is configured to determine whether a plurality of gate lines of the display unit are driven simultaneously; a gate of the first transistor is configured to receive a first voltage, a source of the first transistor is configured to receive a second voltage, a drain of the first transistor is connected to a source of the second transistor, the first voltage is a switch-on voltage of a transistor in the gate driver on array circuit, the second voltage is a switch-off voltage of the transistor in the gate driver on array circuit, and a common terminal of the drain of the first transistor and the source of the second transistor is configured to output the feedback signal; a gate of the second transistor is connected to a scan signal output by one GoA unit of the gate driver on array circuit, and a drain of the second is connected to a drain of the third transistor; and a gate of the third transistor is connected to a scan signal output by another GoA unit of the gate driver on array circuit, and a source of the third transistor is configured to receive the first voltage.