Patent ID: 8423309

Claim:
A method for performing quality control on an organic light emitting diode (OLED) pixel comprising three sub-pixels formed in parallel, the method being performed on a computer having a processor and a non-transitory computer-readable medium having computer-executable instructions stored thereon, wherein the processor performs the method in accordance with the stored instructions, comprising: determining a first total current flowing to the three sub-pixels with only a first sub-pixel energized, the first total current being equal to a sum of a first current flowing to the first sub-pixel, a first leakage current flowing to a second sub-pixel and a second leakage current flowing to a third sub-pixel, the first total current being sufficient to illuminate the three sub-pixels at a first luminance equal to one third of a total luminance, the total luminance being emitted by the OLED pixel when the first sub-pixel, the second sub-pixel and the third sub-pixel are energized; determining a second total current flowing to the three sub-pixels with only the first sub-pixel and the second sub-pixel energized, the second total current being equal to a sum of the first current flowing to the first sub-pixel, a second current flowing to the second sub-pixel and the second leakage current flowing to the third sub-pixel, the second total current being sufficient to illuminate the three sub-pixels at a second luminance equal to two thirds of the total luminance; calculating a weighted average current leakage for the sub-pixels by multiplying the first total current times two and subtracting the second total current to form a result, and multiplying the result by two ninths; and determining if the OLED pixel is suitable for processing as a color display by comparing the weighted average current leakage to a predetermined level.