Pixel and organic light emitting display device using the same

摘要

A pixel for a display panel includes an organic light emitting diode and two driving transistors. The first driving transistor supplies current from a first power source to the organic light emitting diode based on a voltage applied to a first node. The second driving transistor coupled between an electrode of the first driving transistor and the organic light emitting diode. The second driving transistor is turned on or turned off corresponding to a data signal supplied from a data line. A third transistor, coupled between a gate electrode of the second driving transistor and the data line, is turned on when a scan signal is supplied to a scan line. A compensation circuit is coupled to the first node to compensate for a voltage corresponding to a threshold voltage of the first driving transistor.

主权项

1. A pixel comprising:
an organic light emitting diode; a first driving transistor to supply current from a first power source to the organic light emitting diode, the first driving transistor to supply the current based on a voltage applied to a first node coupled to a gate electrode of the first driving transistor; a second driving transistor coupled between a first electrode of the first driving transistor and the organic light emitting diode, the second driving transistor being turned on or turned off corresponding to a data signal supplied from a data line; a third transistor coupled between a gate electrode of the second driving transistor and the data line, the third transistor being turned on when a scan signal is supplied to a scan line; and a compensation circuit coupled to the first node, the compensation circuit compensating for a voltage corresponding to a threshold voltage of the first driving transistor.