The externally compensated display system has been proved to have greater potential to completely solve aging and uniformity issues of the AMOLED display system than the internally compensated display system. However, the traditional compensation method is time consuming and responses slowly to the mobility change of TFT. The traditional compensation method performs calibration during the inter-frame blanking period, the length of which is limited. Only a few rows of pixel circuits can be calibrated per frame. Furthermore, each pixel circuit needs multiple times of calibration to reach compensated state. In this article, a fast progressive compensation method is proposed. The calibration of a row of pixel circuits is performed K rows ahead of the display line during the display data updating period. By doing so, the proposed fast progressive compensation method can approach compensated state faster than the traditional method because display data updating period is significantly longer than the inter-frame blanking period. For the case of 10% inter-frame blanking period and 20 $\mu \text{s}$ waiting delay for feedback data line to be stable, the proposed method reduces the compensation time by ~14x than the traditional method.

中文翻译：

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外部补偿AMOLED显示器的快速渐进补偿方法

与内部补偿显示系统相比，已证明外部补偿显示系统具有更大的潜力来完全解决AMOLED显示系统的老化和均匀性问题。但是，传统的补偿方法很耗时，并且对TFT的迁移率变化反应缓慢。传统的补偿方法在帧间消隐期间执行校准，而帧间消隐的长度是有限的。每帧只能校准几行像素电路。此外，每个像素电路需要多次校准才能达到补偿状态。本文提出了一种快速渐进补偿方法。在显示数据更新时段期间，在显示线之前的K行执行一行像素电路的校准。通过这样做，由于显示数据更新周期显着长于帧间消隐周期，因此提出的快速逐行补偿方法可以比传统方法更快地达到补偿状态。对于10％的帧间消隐期和20 $ \ mu \ text {s} $ 由于反馈数据线的等待延迟稳定，因此与传统方法相比，该方法将补偿时间减少了约14倍。