Patent ID: 7605599

Claim:
A motherboard of an Organic Electro Luminescence Display (OELD), comprising: a plurality of OELDs each including: a pixel unit having a plurality of pixels to receive a first power supply voltage, a second power supply voltage, scanning signals and test signals and to emit light; a scan driving unit to supply the scanning signals to the pixel unit; a test unit to supply the test signals to the pixel unit by data lines; and a data distribution unit to supply the test signals connected between the test unit and the data lines to a plurality of the data lines, the test signals connected between the test unit and the data lines being supplied to output lines of separate test units; a first wire group connected to OELDs of the plurality of the OELDs aligned in a first direction; and a second wire group connected to OELDs of the plurality of the OELDs aligned in a second direction which crosses the first direction; wherein at least one of the first and the second wire groups supplies predetermined test signals and predetermined power supply voltages to self-connected separate OELDs.