Organic light-emitting diode display panel and driving method thereof

Abstract

The present disclosure provides an organic light-emitting diode (OLED) display panel and a driving method thereof. The OLED display panel includes a plurality of pixel circuits and an external compensation unit connected to the plurality of pixel circuits. The external compensation unit externally compensates the pixel circuits, obtains initial threshold voltages of driving thin-film transistors (TFTs) of each pixel circuits, obtains a sum data signal by summing up each of the initial threshold voltages and an input signal corresponding to each pixel circuits, and transmits the sum data signal to each pixel circuits. The external compensation compensates non-uniformity initial threshold voltages of each driving TFTs caused from manufacture of OLED display panel and compensates the permanent drift of the actual threshold voltage caused from external stress. The internal compensation instantly compensates relatively slight drift of actual threshold voltage occurring during the emitting of the OLED display panel.

Dependencies are inferred from the claim text.