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本文提出一种直接型快速反馈电流驱动器，用于中到大型AMOLED显示器。该方案通过反馈机制补偿数据线寄生电容的影响，在保持电流驱动精度的同时显著提高驱动速度，解决了传统电流驱动方法在大尺寸面板上速度慢的问题。
modulation (PAM) in AMOLED displays. Current driving methods have advantages over voltage driving schemes including improvement of luminance uniformity at display panels and compensation of TFT characteristics at pixels [1]. However, with the current driving methods, when the parasitic capacitance of a data line is increased, the driving speed is substantially degraded. In order to obtain high driving accuracy and fast driving speed, feedback driving methods have been introduced [2] [3]. The current-feedback driving method accurately transfers data currents to pixels, which compare the data with pixel currents. The feedback operation, where the pixel current is detected however, invokes a time delay to charge and discharge the parasitic capacitance of the feedback path with the pixel or data current. In
Jin-Yong Jeon, Yong-Joon Jeon, Young-Suk Son, Kwang-Chan Lee,
Hyung-Min Lee, Seung-Chul Jung, Kang-Ho Lee, Gyu-Hyeong Cho KAIST, Daejeon, Korea Either current or voltage driving schemes are employed for pulseamplitude