An organic light emitting display (OLED) device and method of fabricating the same are disclosed. The device may include unit pixel regions arranged on a substrate. Each of the unit pixel regions may include an emission region and a non-emission region. A pixel electrode may be disposed at least in the emission region. A pillar may be disposed between emission regions of adjacent unit pixel regions that emit same-colored light. The pillar may protrude upward further than the pixel electrode. An emission layer may be disposed on the pixel electrode. An opposite electrode may be disposed on the emission layer.