Abstract: Disclosed is an organic light emitting display device including a plurality of sub-pixels on an array substrate in which each sub-pixel includes a circuit part including a switching transistor, a driving transistor and a capacitor; and a light emitting part having a shape defined with a width and a length and including a first electrode electrically connected to the driving transistor, an organic light emitting layer and a second electrode, the first electrode including a first pattern having a recess, a second pattern having a protrusion received in the recess, and a third pattern connecting the first and second patterns, wherein a depth of the recess is greater than a half of a longer of the width and the length of the light emitting part.

Abstract: Disclosed is an organic light emitting display device including a plurality of sub-pixels on an array substrate in which each sub-pixel includes a circuit part including a switching transistor, a driving transistor and a capacitor; and a light emitting part having a shape defined with a width and a length and including a first electrode electrically connected to the driving transistor, an organic light emitting layer and a second electrode, the first electrode including a first pattern having a recess, a second pattern having a protrusion received in the recess, and a third pattern connecting the first and second patterns, wherein a depth of the recess is greater than a half of a longer of the width and the length of the light emitting part.