Abstract
According to the basic 2T1 C pixel circuit,the calculation model of AMOLED panel and TFT parameters was established. The relationships of AMOLED display size with mobility of TFT,metal sheet resistance,refresh rate and TFT device structure were analyzed in detail. In the design of large size high resolution AMOLED panel,RC delay of signal line is the main limiting factor. The enhancement of TFT mobility is benefit for large size display panel within a certain range. Reducing the RC delay is the key technology to realize the large size,high resolution,high refresh rate display. Developing the copper wiring technology and TFT device structure with low parasitic capacitance is the key technology of large size AMOLED display in the future.
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