Organic light emitting diode display including reaction blocking member on common voltage line

An organic light emitting diode display comprising:

• a substrate divided into a pixel area, and a peripheral area enclosing the pixel area;
• an organic light emitting diode which is in the pixel area, and comprises a first electrode, an organic emission layer and a second electrode;
• a common voltage line which is in the peripheral area and transmits a common voltage to the second electrode;
• an organic layer which is on the common voltage line, and comprises a contact hole in the peripheral area and at which the second electrode of the organic light emitting diode is connected to the common voltage line;
• a common connection member which is in the peripheral area and connects the second electrode of the organic light emitting diode to the common voltage line, the common connection member comprising:
• a main wire layer comprising an upper side and a lower side, and
• assistance wire layers respectively covering the upper side and the lower side of the main wire layer;
• and
• a pixel definition layer which is between the second electrode of the organic light emitting diode and the common connection member,
• wherein
• in the peripheral area, the second electrode overlaps the contact hole and contacts the common connection member, at a common area,
• at the common area, the common connection member fills an entirety of the contact hole, and
• an assistance wire layer of the common connection member which covers the lower side of the main wire layer fills the entirety of the contact hole.