It's well‐known that the medium size OLED panel of high resolution, heavy RC load, and high refresh rate has a short period of 1 line (1 H), so it can't compolete internal compensation and refresh data steps in 1 H time. This article elaborates on a method of separating compensation and refreshing data using oxide TFTs,which can take a long time for compensation, and its PWM GOA can work within the range of‐2V<TFT Vth<4V.After internal compensation, the uniformity of panel can be increased from 40% to over 80%. We demonstrated the 6inch AMOLED panels successfully, and they have sufficient stability during operation at 60° for over 500 hours and 60°&90% humidity for over 240 hours.
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Xu et al. (2024) studied this question.
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