基于直流平衡的电泳电子纸驱动波形的优化研究

Driving waveform optimization in electrophoretic display based on DC-balance

随着人们对于生活品质要求的提高,便利、护眼、能耗低的电子纸显示技术在显示技术领域越来越受人们追捧。电子纸的显示是通过一系列的驱动波形来实现,即不同的灰阶通过不同的电压驱动序列驱动而得到。在驱动波形的设计中不仅要考虑到显示效果,还要考虑到刷屏响应速度、闪烁和直流平衡的影响。本文提出了一种新的驱动波形设计方案,不仅达到了直流平衡,消除了可能积累电荷对于显示屏的影响,同时提高了刷屏的速度,减少了25%的闪烁,也保证了显示效果。

The electrophoretic display（EPD）has great prospects,since it has the advantage of paperlike display,being able to read in sunlight conditions and very low energy consumption.The change of voltage states in displaying different gray tone levels is frequently called a driving waveform.Driving waveform designing need not only take into account the display quality,but also consider the update speed,flickers and DC-Balance.A new driving method is presented in this paper.This method achieved DC-Balance,eliminating the influence of remain charge,increasing the response speed,decreasing about 25% number of flickers and ensure the image quality.