ORGANIC LIGHT EMITTING DISPLAY DEVICE

摘要

One embodiment of the present invention relates to an organic light emitting display device capable of uniformalizing the brightness of pixels by compensating for a threshold voltage of a driving transistor. According to the embodiment of the present invention, the organic light emitting display device includes a display panel having a plurality of pixels which are connected to a plurality of reference voltage lines to which a reference voltage is supplied and a plurality of driving voltage lines to which a driving voltage is supplied. The pixels include: an organic light-emitting diode wherein a low-potential driving voltage lower than the driving voltage is supplied to a cathode electrode; a driving transistor which controls the current flowing from the driving voltage lines to the organic light-emitting diode due to a voltage difference between a gate electrode and a source electrode; a first capacitor having a first electrode connected to the gate electrode of the driving transistor (DT) and a second electrode connected to the source electrode of the driving transistor; and a second capacitor having a first electrode connected to the reference voltage line and a second electrode connected to the source electrode of the driving transistor.