In this paper, we provide the best way to drive large panel. This metho and threshold voltage by extracting the TFT characteristics of each pixel of the panel. It also compensates the time degradation characteristics of the TFT. From the extracted characteristics, correc 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 OLED TV was manufactured and com commercialization of large is very suitable and it will become an important. But, as shown in Figure 1, the image quality deterioration due to TFT characteristics variations in the back large-size display deviation of the pixels due to the on Vth variations at large Therefore, in order to obtain a uniform image quality of large size displays, for current deviation due to the TFT ch variation in pane Author KeywordsIn this paper, we introduced driving method for compensating the characteristics which are inch OLED TV using Optimal Driving Method for Large