P-15: AMOLED Pixel Structures Compensating the Hysteresis of Poly-Si TFTs

New voltage programmed pixel circuits for AMOLEDs are proposed and measured. The measurement data indicate that the proposed driving schemes are less sensitive to the hysteresis of low temperature polycrystalline silicon (LTPS) TFTs than the conventional 2T1C pixel structure and can improve the recoverable residual image due to the hysteresis characteristics of LTPS TFTs. In the proposed driving schemes, the black data are inserted in displayed images so that the motion image quality should be improved.