Method and device for detecting threshold voltage of driving transistor by adjusting at least one of data signal and reference signal loaded on target driving transistor such that a first-electrode target voltage of the target driving transistor is within a preset voltage range

摘要

A detecting method and device for detecting threshold voltages of driving transistors. The detecting method includes: loading data signals and reference signals on respective driving transistors in a detection group; when the respective driving transistors are in a turn-off state, detecting first-electrode voltages of the respective driving transistors; and determining a target adjustment set in the detection group according to the first-electrode voltages of the respective driving transistors and a preset voltage range. For each target driving transistor in the target adjustment set, the detecting method further includes: adjusting at least one of a data signal and a reference signal loaded on the target driving transistor; when the target driving transistor is in the turn-off state, detecting a first-electrode target voltage of the target driving transistor; and determining a threshold voltage of the target driving transistor according to the first-electrode target voltage of the target driving transistor.