A novel a-Si TFT pixel circuit with high immunity to the degradation of the TFTs and OLEDs used in AMOLED displays

Abstract

A simple pixel circuit employing a-Si TFT for AMOLED is proposed. The proposed one can eliminate both the threshold voltage shift of the driving TFT and the OLED. The simulation results indicate that the proposed circuit significantly improves the non-uniformity of output current by the new compensation operation.