论文信息 - 38.1: Optical Feedback for AMOLED Display Compensation using LTPS and a‐Si:H Technologies

38.1: Optical Feedback for AMOLED Display Compensation using LTPS and a‐Si:H Technologies

New optical feedback pixel circuits for a-Si:H and LTPS technologies will be presented. The circuits will enable correction of threshold voltage drift of the drive TFT and degradation of the OLED. In the a-Si:H case this will be achieved with a standard a-Si:H process and for LTPS an a-Si NIP photodiode is integrated. Operation, technology and measurements will be presented.

[1] Walter Riess,et al. 4.1: A 20‐inch OLED Display Driven by Super‐Amorphous‐Silicon Technology , 2003 .

[2] Herbert Lifka,et al. 32.1: Invited Paper: A Comparison of Pixel Circuits for Active Matrix Polymer/Organic LED Displays , 2002 .

[3] D. L. Staebler,et al. Stability of n‐i‐p amorphous silicon solar cells , 1981 .

[4] John Martin Shannon,et al. 35.2: Improved Optical Feedback for AMOLED Display Differential Ageing Compensation , 2004 .

[5] M. J. Powell,et al. Relative importance of the Si–Si bond and Si–H bond for the stability of amorphous silicon thin film transistors , 2000 .

[6] Reiji Hattori,et al. 57.4L: Late-News Paper: Full-color Polymer AM-OLED using Ink-jet and a-Si TFT Technologies , 2004 .

[7] J. R. Hughes,et al. Time and temperature dependence of instability mechanisms in amorphous silicon thin-film transistors , 1989 .