58.2: 55-inch OLED TV using Optimal Driving Method for Large-Size Panel based on InGaZnO TFTs

In this paper, we provide the best way to drive large-size OLED panel. This method compensates for variations in the on-current and threshold voltage by extracting the TFT characteristics of each pixel of the panel. It also compensates the time-dependent degradation characteristics of the TFT. From the extracted characteristics, corrected image-data are generated that is composed gain and offset. By driving in the data which is corrected, it is possible to improve the uniformity of brightness and increase the life-time of the panel. Consequently, 55-inch OLED TV was manufactured and commercialized. For the commercialization of large-size OLED TV, this driving method is very suitable and it will become an important.