Organic light emitting diode display and repairing method thereof

An organic light emitting diode display, comprising:

• a substrate including a display unit displaying an image and a peripheral portion surrounding the display unit;
• a plurality of scan lines on the substrate and extending in a first direction;
• a plurality of data lines intersecting the scan lines and extending in a second direction;
• a plurality of pixels in the display unit, each pixel including a pixel circuit portion connected to a corresponding scan line and a corresponding data line, and an organic light emitting diode connected to the pixel circuit portion;
• a first dummy line on the peripheral portion and extending in the first direction;
• at least one second dummy line on the display unit and extending in the second direction;
• a plurality of dummy circuit portions on the peripheral portion and connected to the first dummy line and the second dummy line;
• a plurality of driving pads on the peripheral portion and connected to end portions of the plurality of data lines;
• a dummy driving pad on the peripheral portion and connected to an end portion of the first dummy line;
• and
• a driving circuit transmitting a data signal to the plurality of driving pads and a dummy scan signal to the dummy driving pad.

A method of repairing an organic light emitting diode display including a display unit and a peripheral portion on a substrate, intersecting scan and data lines with pixels having pixel circuit portions connected to organic light emitting diodes, at least one first dummy line parallel to the scan lines, and at least one second dummy line parallel to the data lines, the method comprising:

• determining a faulty pixel in the organic light emitting diode display;
• insulating the pixel circuit portion from the organic light emitting diode of the detected faulty pixel;
• and
• short-circuiting either the first or second dummy line adjacent to the faulty pixel among the first and second dummy lines and the organic light emitting diode of the faulty pixel,
• wherein the organic light emitting diode display further comprises:
• a plurality of dummy circuit portions on the peripheral portion and connected to corresponding first and second dummy lines,
• a plurality of driving pads on the peripheral portion and connected to end portions of the plurality of data lines,
• at least one dummy driving pad on the peripheral portion and connected to an end portion of the second dummy line, and
• a driving circuit configured to transmit a data signal to the plurality of driving pads and a data or scan signal to the at least one dummy driving pad.