Organic light emitting display device and method of testing the same

An organic light emitting display device, comprising:

• scan lines arranged in respective horizontal lines;
• data lines configured to intersect the scan lines;
• a pixel array, the pixel array including pixels coupled to the scan lines and the data lines, the pixels including at least first color pixels;
• a panel tester, the panel tester including switching elements coupled to first ends of the data lines, the switching elements including at least first and second switching elements;
• and
• a first line coupled to the first switching elements and a second line coupled to the second switching elements, wherein:
• data lines of K-th to (K+L)-th (where K and L are natural numbers) first color pixels arranged in a predetermined horizontal line are coupled to the first line through the first switching elements,
• data lines of at least a part of remaining first color pixels arranged in the predetermined horizontal line are coupled to the second line through the second switching elements,
• the number of first color pixels coupled to the first line is less than the number of first color pixels coupled to the second line, and
• a thickness of the first line is less than a thickness of the second line.