AUTHOR=Lai Shufa , Tian Lixia , Shen Shitao , Yuan Dong , Tang Biao 

TITLE=An arc multi-electrode pixel structure for improving the response speed of electrowetting displays

JOURNAL=Frontiers in Physics

VOLUME=Volume 10 - 2022

YEAR=2022

URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2022.975317

DOI=10.3389/fphy.2022.975317

ISSN=2296-424X

ABSTRACT=Electrowetting display (EWD) is a new reflective display device with low power consumption and high contrast. To further improve the response speed of pixels, an arc multi-electrode pixel structure was proposed, and a three-dimensional EWD device model was established in this paper. According to the model, the influence of the arc multi-electrode pixel structure on response speed was simulated, and the influence of a driving sequence on oil movement inside pixels was analyzed. In addition, comparative experiments of single-electrode and arc multi-electrode for oil movement inside pixels were completed. Experimental results showed that the response time of the arc multi-electrode structure was 0.9 ms faster than the single-electrode structure in a pixel opening stage. In the pixel closing stage, the oil recovery time can be accelerated by applying a boosting voltage to the electrode corresponding to the oil accumulation area, which was 2.3 ms faster than that of the single-electrode structure.