研制了一种基于介质上电润湿(electrowetting—on—dielectric,EWOD)的新型低驱动电压电子纸反射式显示单元器件,本文分析了器件的工作原理以及性能影响因素,并提出用优化的氮化硅与碳氟聚合物复合介质层来改善器件的驱动电压,实验证实,器件在15V低电压驱动下成功实现了“开启”、“关闭”功能,其“开启”、“关闭”响应时间小于1/30s。
A new low-voltage reflective display pixel for electronic paper based on electrowetting-on-dielectric (EWOD) is proposed. The principle of the display pixel and the influences on the performances were analyzed, and the applied voltage was reduced by using the multiple dielectric layers of a Si3N4 film and a fluorocarbon polymer film. The on-switching and off-switching of display pixel were successfully realized by applying the low voltage of 15V,and the response times were less than 1/30s.