Fabrication Process of Bistable Electrowetting Displays Based on Photolithography and Inkjet Printing

Bistable electrowetting displays (BEWDs) have become a competitive technical solution for low-power and static display fields due to their unique zero-power-consumption holding characteristics. However, traditional BEWD pixels face problems such as high driving voltage, complex processes, high cost, open structures, and difficulty in high-resolution array fabrication. Aiming at these bottlenecks, this paper proposes a closed stereoscopic bistable EWD pixel structure driven by planar and non-planar electrodes, and completes the design, fabrication, and performance verification of the device. The fabrication process proposed in this paper combines photolithography and inkjet printing, featuring simple process, low cost, closed pixels, and low driving voltage, which solves the key problems of traditional processes. The research results provide a feasible process route and experimental basis for the development of low-power bistable electrowetting display devices.