Organic light emitting diode display including a common power supply line in a non-display area

An organic light emitting diode display comprising:

• a substrate including a display area and a non-display area adjacent to the display area;
• a pixel thin film transistor positioned in the display area of the substrate;
• a first conductive layer positioned over the pixel thin film transistor;
• a second conductive layer positioned over the first conductive layer;
• an organic light emitting element positioned over the second conductive layer and electrically connected to the pixel thin film transistor through the first conductive layer and the second conductive layer;
• a circuit unit positioned in the non-display area of the substrate and including a circuit thin film transistor electrically connected to the pixel thin film transistor;
• and
• a common power supply line overlapping at least part of the circuit unit, electrically connected to the organic light emitting element, and formed on a same layer as the second conductive layer,
• wherein the first conductive layer is connected to the pixel thin film transistor and the second conductive layer,
• wherein the non-display area includes:
• a circuit area adjacent to the display area and including the circuit unit and the common power supply line;
• and
• a sealing area adjacent to the circuit area, the organic light emitting diode display further comprising a sealing part positioned in the sealing area and a heat reflection part in contact with the sealing part between the sealing part and the substrate,
• wherein the heat reflection part is isolated from the common power supply line or the circuit unit, and
• wherein the heat reflection part is positioned over the first conductive layer and on a same layer as the second conductive layer.