Abstract
The assembly and integration of liquid crystal (LC) lenses into micro-displays such as virtual reality (VR) optical systems presents specific challenges in improving imaging quality. Cholesteric LCs possess unique properties, such as voltage-dependent pitch and the capability to selectively reflect or transmit circularly polarized light. In terms of environmental sustainability, cellulose, including its derivative ethyl cellulose (EC), is recognized as an eco-friendly LC material. This study aims to explore the potential of EC as a green, eye-conforming material and investigate its optical features for application in state-of-the-art virtual reality. The research encompasses the dissolution behavior, optical and anisotropic properties, and optoelectronic performance of EC. A notable focus of this study is the exceptional assembly of focal length tunable micro-lenses (FLTMs) for pontential virtual reality uses. These findings shed light on the previously untapped attributes of a well-understood material, paving the way for advancements in cutting-edge micro-display devices.