Furthermore in the light-emission phase T3, it takes a very short period of time to detect the high-voltage signal received by the pixel circuit, and to perform voltage compensation on the reference voltage signal applied to the pixel circuit, so there is such a less influence on the light-emitting element L emitting light in the light-emission phase T3 that can be neglected.

Of course, upon determining that ΔV_dd lies into the preset range, the reference voltage signal applied to the pixel circuit remains original reference voltage signal, that is, no voltage compensation is performed.

Based upon the same inventive idea, an embodiment of the disclosure further provides a compensation device of an organic light-emitting diode display panel, and as illustrated in FIG. 6, the device includes the following units.

A detecting unit 610 is configured to detect a high-voltage signal received at a first electrode of a driver transistor in a pixel circuit in the organic light-emitting diode display panel 650 in the current frame when a light-emitting element in the pixel circuit is emitting light.

A storing unit 620 is configured to store a detected high-voltage signal received at the first electrode of the driver transistor in the pixel circuit in a preceding frame.