Electrowetting display pixels fabricated by nanoimprint lithography

Abstract

Abstract. Electrowetting displays (EWD) is a novel technology, based on the variation in coverage of a colored oil film in pixels via application of an electrostatic force. These pixels are usually fabricated by photolithography, which seriously limits materials selection and large area fabrication. In this paper, we demonstrate the feasibility of a novel method, nanoimprint lithography (NIL), to fabricate EWD pixels. Controllable contraction and recovery of oil film in single EWD pixels was realized. Compared with conventional lithography, NIL provides a cost-and time-saving technique that generates comparable display properties and is able to be easily extended to the mass production.

Molecular Investigation of the Actuation of Electrowetted Nanodroplets

“…One of the well-known approaches for the alteration of wettability is the application of an electric field . At the micro-scale, electrowetting has found extensive usage in the fabrication of a number of lab-on-a-chip miniature devices. − Owing to the robustness and flexibility of the electrowetting-on-dielectric (EWOD)-based actuation, it has been utilized in MEMS for biomedical applications, in electrospraying, electrospinning, , inkjet printing, nanoimprinting, , manufacturing at the nanoscale, and tunable optical devices like lenses. − Electrowetting actuation enables quick and precise control of individually addressable droplets with minimal contamination and hence finds widespread use in digital microfluidics, e.g., DNA assays, lab-on-a-chip devices, , proteomics, and chemical analysis …”