Organic light emitting diode display

An organic light emitting diode display, comprising:

• a display panel including a plurality of pixels each including a light emitting diode;
• a data driver configured to supply a plurality of data signals to the plurality of pixels;
• a gate driver including a gate unit configured to supply a plurality of gate signals to the plurality of pixels and an emission unit configured to supply a plurality of emission signals to the plurality of pixels using a charge pump element and control a length of an emission period of the light emitting diode;
• and
• a timing controller configured to supply image data and a data control signal to the data driver and supply a gate control signal to the gate driver,
• wherein the emission unit includes a plurality of emission stages that are cascade-connected to one another,
• wherein each emission stage includes:
• a start controller configured to set an emission Q node to a gate-on voltage in a period in which an emission start voltage and a first emission clock are synchronized;
• a pull-up transistor configured to output a voltage of an output terminal as the gate-on voltage in response to a voltage of the emission Q node;
• a pull-down transistor configured to output the voltage of the output terminal as a gate-off voltage in response to a voltage of an emission QB node;
• a first QB node control transistor configured to set the emission QB node to the gate-on voltage in response to a voltage of an emission Q′ node;
• and
• the charge pump element configured to set the emission Q′ node to the gate-on voltage in response to a second emission clock having a phase opposite to the first emission clock.