Wide Viewing Liquid Crystal Displays with Bi-level Surface Microstructures Fabricated by an imprinting Method

摘要

We report on a wide viewing liquid crystal display with bi-level microstructures fabricated at ambient temperature through an imprinting process which is simple and versatile. Hemispherical microstructures and rectangular microstructures, made of a photopolymer through a single-step imprinting process, produce multi-domains of the liquid crystal (LC) for enhancing the viewing property and provide spacers for maintaining the uniform cell gap, respectively. Our LC cell with embossed bi-level microstructures shows symmetric viewing properties in a wide range of polar angles, contrast ratio of 100:1, and the response time of 34 ms.