A display device including a display unit having a plurality of pixels is disclosed. In one aspect, at least one first pixel among the pixels includes: a first compensation capacitor including one electrode connected to a data line and the other electrode connected to a first node; a first switching transistor including a gate electrode configured to have a scan signal, one electrode connected to the first node, and the other electrode connected to a second node; a first driving transistor including a gate electrode connected to the second node, one electrode connected to a first power source voltage, and the other electrode connected to a first organic light emitting diode (OLED); and a first link transistor including a gate electrode configured to have a link control signal, one electrode connected to the data line, and the other electrode connected to the first power source voltage. Pixels of the type with four transistors may be alternated with pixels of the type having three transistors (no link transistor) according to a desired aspect ratio.