Patent ID: 8974263
Filing Date: 2015-03-10
Classification: H01J,H01L

Abstract:
1. A system of performing quality control in a manufacturing process of an organic light emitting diode (OLED) array comprising OLED pixels including organic material, comprising: means for applying an energizing signal to at least one of the OLED pixels, the energizing signal exceeding a threshold level below which the OLED pixel should not emit light; means for reducing the energizing signal applied to the at least one of the OLED pixels below the threshold level; means for identifying at least one the OLED pixels as a stuck-on OLED pixel that continues to remain energized after the signal is reduced below the threshold level; and means for rendering the stuck-on OLED pixel inoperative by degrading the organic material in the active portion of the stuck-on OLED pixel through irradiating the stuck-on OLED pixel to degrade the organic material in the stuck-on OLED pixel, wherein the means for reducing the energizing signal below the threshold level includes means for maintaining the energizing signal at a percentage of the threshold level, wherein the percentage is less than 100% and exceeds 50%.