A Driving Method for Reducing Oil Film Splitting in Electrowetting Displays

Membranes

Zichuan Yi¹  Xichen Zhou¹  Wenjun Zeng¹  Jianjun Yang¹  Liming Liu¹  Yiming Zhao¹  Chongfu Zhang¹  Feng Chi¹  Li Wang²  Jitao Zhang³ 

[1] College of Electron and Information, University of Electronic Science and Technology of China Zhongshan Institute, Zhongshan 528402, China;School of Information Engineering, Zhongshan Polytechnic, Zhongshan 528400, China;School of Mechanical and Electrical Engineering, Zhongshan Polytechnic, Zhongshan 528400, China;

关键词: electrowetting displays (EWDs);    driving waveform;    oil film splitting;    aperture ratio;    quadratic function waveform;   

DOI  :  10.3390/membranes11120920

来源: DOAJ

【 摘 要 】

Electrowetting displays (EWDs) are one of the most potential electronic papers. However, they have the problem of oil film splitting, which could lead to a low aperture ratio of EWDs. In this paper, a driving waveform was proposed to reduce oil film splitting. The driving waveform was composed of a rising stage and a driving stage. First, the rupture voltage of oil film was analyzed by testing the voltage characteristic curve of EWDs. Then, a quadratic function waveform with an initial voltage was applied at the rising stage to suppress oil film splitting. Finally, a square wave was applied at the driving stage to maintain the aperture ratio of EWDs. The experimental results show that the luminance was increased by 8.78% and the aperture ratio was increased by 4.47% compared with an exponential function driving waveform.

【 授权许可】

Unknown