DISPLAY DEVICE AND DRIVING METHOD THEREOF

摘要

A method of driving an OLED display includes: during a scanning period of a first frame, turning off a relay transistor and turning on a switching transistor to enable a second data voltage applied to a data line to be stored in a first capacitor; and during a light emitting period of the first frame, performing an operation to turn on a light emitting transistor and a compensation transistor to enable a voltage into which a first data voltage and a threshold voltage of a driving transistor are reflected to be applied to a second node for enabling the OLED to emit light by a driving current which flows into a driving transistor. The scanning period and the light emitting period temporally overlap each other.

主权项

1. A display device comprising:
a plurality of pixels, wherein each of the plurality of pixels comprises: a switching transistor comprising a gate electrode to which a scan signal is applied, an electrode connected to a data line, and another electrode connected to a first node; a relay transistor comprising a gate electrode to which a writing signal is applied, an electrode connected to the first node, and another electrode connected to a second node; a driving transistor comprising a gate electrode connected to the second node, an electrode connected to a third node, and another electrode connected to an organic light emitting diode; a first capacitor comprising an electrode connected to the third node and another electrode connected to a fourth node; a compensation transistor comprising a gate electrode to which a light emitting signal is applied, an electrode connected to the second node, and another electrode connected to the fourth node; a reset transistor comprising a gate electrode to which a reset signal is applied, an electrode connected to the data line, and another electrode connected to the fourth node; and a light emitting transistor comprising a gate electrode to which the light emitting signal is applied, one electrode connected to a first power source voltage, and another electrode connected to the third node.