Organic light-emitting display device

An organic light-emitting display device, comprising:

• a substrate including an active area having a plurality of sub-pixels and a non-active area around a periphery of the active area, the non-active area including a pad portion at a first side, gate-driving portions at second and third sides that are contiguous to respective ends of the first side, and a non-pad portion at a fourth side that faces the first side and is located between the gate-driving portions at the second and third sides;
• an encapsulation substrate disposed to face the substrate;
• a first dam pattern and a second dam pattern spaced apart from each other in the non-active area of each of the first to fourth sides, each of the first dam pattern and the second dam pattern being formed in a closed-loop configuration;
• a seal pattern located between the first dam pattern and the second dam pattern and located between the substrate and the encapsulation substrate, the seal pattern being only in the non-active area;
• and
• a first compensation pattern in the non-active area of the fourth side, wherein the seal pattern fully overlaps the first compensation pattern,
• wherein each of the sub-pixels includes at least one thin-film transistor, an overcoat layer covering the thin-film transistor, and an organic light-emitting diode located on the overcoat layer and electrically connected to the thin-film transistor, the organic light-emitting diode including a first electrode, an organic light-emitting layer and a second electrode, and
• wherein the second electrode is formed as a single body in an entire region of the active area, and extends outwards from the active area and is at least partially overlapped by the seal pattern.