期刊
MICROMACHINES
卷 11, 期 2, 页码 -出版社
MDPI
DOI: 10.3390/mi11020145
关键词
driving waveform; power consumption; electrowetting display; aperture ratio; response speed
类别
资金
- National Key R&D Program of China [2016YFB0401502, 2018YFB0407100-02, 2018YFB1801302]
- Key Research Platforms and Research Projects in Universities and Colleges of Guangdong Provincial Department of Education [2018KQNCX334]
- Zhongshan Innovative Research Team Program [180809162197886]
- Zhongshan Institute high-level talent scientific research startup fund project [416YKQ04]
- Key-Area Research and Development Program of GuangDong Province [2019B010924005]
- Program for Chang Jiang Scholars and Innovative Research Teams in Universities [IRT_17R40]
- Science and Technology Program of Guangzhou [2019050001]
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology [2017B030301007]
- MOE International Laboratory for Optical Information Technologies
- 111 Project
As a kind of paper-like display technology, power consumption is a very important index for electrowetting displays (EWDs). In this paper, the influence of driving waveforms on power consumption of the EWDs is analyzed, and a driving waveform with rising gradient and sawtooth wave is designed to reduce the power consumption. There are three stages in the proposed driving waveform. In the initial stage, the driving voltage is raised linearly from the threshold to the maximum value to reduce the invalid power consumption. At the same time, the oil breakup can be prohibited. And then, a section of sawtooth wave is added for suppressing oil backflow. Finally, there is a section of resetting wave to eliminate the influence of charge leakage. Experimental results show that the power consumption of the ultra-low power driving waveform is 1.85 mW, which is about 38.13% lower than that of the conventional used square wave (2.99 mW), when the aperture ratio is 65%.
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