# Improved saturation and wide-viewing angle color filters based on multi-twist retarders

> Research article (Optics Express, 2021) · cited 13× · AI/ML

**Wikidata**: [openalex:W3119337323](https://www.wikidata.org/wiki/openalex:W3119337323)  
**Source**: https://4ort.xyz/entity/improved-saturation-and-wide-viewing-angle-color-filters-based-on-multi-twist-retarders